diff --git a/dist/mini-default.css b/dist/mini-default.css
index a4c33e7..cf61463 100644
--- a/dist/mini-default.css
+++ b/dist/mini-default.css
@@ -13,7 +13,7 @@
   --fore-color: #111;
   --secondary-fore-color: #444;
   --back-color: #f8f8f8;
-  --secondary-back-color: #eee;
+  --secondary-back-color: #f0f0f0;
   --blockquote-color: #f57c00;
   --pre-color: #1565c0;
   --border-color: #aaa;
@@ -30,6 +30,10 @@ html {
   font-size: 16px;
 }
 
+a, b, del, em, i, ins, q, span, strong, u {
+  font-size: 1em;
+}
+
 html, * {
   font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Helvetica, sans-serif;
   line-height: 1.5;
@@ -590,3 +594,178 @@ a:hover, a:focus {
     order: 999;
   }
 }
+
+/*
+  Definitions for forms and input elements.
+*/
+/* Input_control module CSS variable definitions */
+:root {
+  --input-focus-color: #0288d1;
+  --input-invalid-color: #d32f2f;
+  --button-back-color: #e2e2e2;
+  --button-hover-back-color: #dcdcdc;
+  --button-fore-color: #212121;
+  --button-border-color: transparent;
+  --button-hover-border-color: transparent;
+}
+
+form {
+  background: var(--secondary-back-color);
+  border: 0.0625rem solid var(--secondary-border-color);
+  border-radius: var(--universal-border-radius);
+  margin: var(--universal-margin);
+  padding: calc(2 * var(--universal-padding)) var(--universal-padding);
+}
+
+fieldset {
+  border: 0.0625rem solid var(--secondary-border-color);
+  border-radius: var(--universal-border-radius);
+  margin: calc(var(--universal-margin) / 4);
+  padding: var(--universal-padding);
+}
+
+legend {
+  box-sizing: border-box;
+  display: table;
+  max-width: 100%;
+  white-space: normal;
+  font-weight: 700;
+  padding: calc(var(--universal-padding) / 2);
+}
+
+label {
+  padding: calc(var(--universal-padding) / 2) var(--universal-padding);
+}
+
+.input-group {
+  display: inline-block;
+}
+
+.input-group.fluid {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.input-group.fluid > input {
+  flex-grow: 1;
+  flex-basis: 0px;
+}
+
+@media screen and (max-width: 767px) {
+  .input-group.fluid {
+    align-items: stretch;
+    flex-direction: column;
+  }
+}
+
+.input-group.vertical {
+  display: flex;
+  align-items: stretch;
+  flex-direction: column;
+}
+
+.input-group.vertical > input {
+  flex-grow: 1;
+  flex-basis: 0px;
+}
+
+[type="number"]::-webkit-inner-spin-button, [type="number"]::-webkit-outer-spin-button {
+  height: auto;
+}
+
+[type="search"] {
+  -webkit-appearance: textfield;
+  outline-offset: -2px;
+}
+
+[type="search"]::-webkit-search-cancel-button,
+[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
+}
+
+input:not([type]), [type="text"], [type="email"], [type="number"], [type="search"],
+[type="password"], [type="url"], [type="tel"], textarea, select {
+  box-sizing: border-box;
+  background: var(--back-color);
+  color: var(--fore-color);
+  border: 0.0625rem solid var(--secondary-border-color);
+  border-radius: var(--universal-border-radius);
+  margin: calc(var(--universal-margin) / 2);
+  padding: var(--universal-padding) calc(1.5 * var(--universal-padding));
+}
+
+input:not([type="button"]):not([type="submit"]):not([type="reset"]):hover, input:not([type="button"]):not([type="submit"]):not([type="reset"]):focus, textarea:hover, textarea:focus, select:hover, select:focus {
+  border-color: var(--input-focus-color);
+  box-shadow: none;
+}
+
+input:not([type="button"]):not([type="submit"]):not([type="reset"]):invalid, input:not([type="button"]):not([type="submit"]):not([type="reset"]):focus:invalid, textarea:invalid, textarea:focus:invalid, select:invalid, select:focus:invalid {
+  border-color: var(--input-invalid-color);
+  box-shadow: none;
+}
+
+input:not([type="button"]):not([type="submit"]):not([type="reset"])[readonly], textarea[readonly], select[readonly] {
+  background: var(--secondary-back-color);
+}
+
+select {
+  max-width: 100%;
+}
+
+option {
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+:placeholder-shown {
+  color: var(--fore-color);
+}
+
+::-ms-placeholder {
+  color: var(--fore-color);
+  opacity: 0.54;
+}
+
+button::-moz-focus-inner, [type="button"]::-moz-focus-inner, [type="reset"]::-moz-focus-inner, [type="submit"]::-moz-focus-inner {
+  border-style: none;
+  padding: 0;
+}
+
+button, html [type="button"], [type="reset"], [type="submit"] {
+  -webkit-appearance: button;
+}
+
+button {
+  overflow: visible;
+  text-transform: none;
+}
+
+button, [type="button"], [type="submit"], [type="reset"],
+a.button, label.button, .button,
+a[role="button"], label[role="button"], [role="button"] {
+  display: inline-block;
+  background: var(--button-back-color);
+  color: var(--button-fore-color);
+  border: 0.0625rem solid var(--button-border-color);
+  border-radius: var(--universal-border-radius);
+  padding: var(--universal-padding) calc(1.5 * var(--universal-padding));
+  margin: var(--universal-margin);
+  text-decoration: none;
+  cursor: pointer;
+  transition: background 0.3s;
+}
+
+button:hover, button:focus, [type="button"]:hover, [type="button"]:focus, [type="submit"]:hover, [type="submit"]:focus, [type="reset"]:hover, [type="reset"]:focus,
+a.button:hover,
+a.button:focus, label.button:hover, label.button:focus, .button:hover, .button:focus,
+a[role="button"]:hover,
+a[role="button"]:focus, label[role="button"]:hover, label[role="button"]:focus, [role="button"]:hover, [role="button"]:focus {
+  background: var(--button-hover-back-color);
+  border-color: var(--button-hover-border-color);
+}
+
+input:disabled, input[disabled], textarea:disabled, textarea[disabled], select:disabled, select[disabled], button:disabled, button[disabled], .button:disabled, .button[disabled], [role="button"]:disabled, [role="button"][disabled] {
+  cursor: not-allowed;
+  opacity: 0.75;
+}
diff --git a/dist/mini-default.min.css b/dist/mini-default.min.css
index 71507dc..37309e6 100644
--- a/dist/mini-default.min.css
+++ b/dist/mini-default.min.css
@@ -1 +1 @@
-:root{--fore-color:#111;--secondary-fore-color:#444;--back-color:#f8f8f8;--secondary-back-color:#eee;--blockquote-color:#f57c00;--pre-color:#1565c0;--border-color:#aaa;--secondary-border-color:#ddd;--heading-ratio:1.19;--universal-margin:.5rem;--universal-padding:.5rem;--universal-border-radius:.125rem;--a-link-color:#0277bd;--a-visited-color:#01579b}html{font-size:16px}html,*{font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Helvetica, sans-serif;line-height:1.5;-webkit-text-size-adjust:100%}*{font-size:1rem}body{margin:0;color:var(--fore-color);background:var(--back-color)}details{display:block}summary{display:list-item}abbr[title]{border-bottom:none;text-decoration:underline dotted}input{overflow:visible}img{max-width:100%;height:auto}h1,h2,h3,h4,h5,h6{line-height:1.2;margin:calc(1.5 * var(--universal-margin)) var(--universal-margin);font-weight:500}h1 small,h2 small,h3 small,h4 small,h5 small,h6 small{color:var(--secondary-fore-color);display:block;margin-top:-.25rem}h1{font-size:calc(1rem * var(--heading-ratio) * var(--heading-ratio) * var(--heading-ratio) * var(--heading-ratio))}h2{font-size:calc(1rem * var(--heading-ratio) * var(--heading-ratio) * var(--heading-ratio))}h3{font-size:calc(1rem * var(--heading-ratio) * var(--heading-ratio))}h4{font-size:calc(1rem * var(--heading-ratio))}h5{font-size:1rem}h6{font-size:calc(1rem / var(--heading-ratio))}p{margin:var(--universal-margin)}ol,ul{margin:var(--universal-margin);padding-left:calc(2 * var(--universal-margin))}b,strong{font-weight:700}hr{box-sizing:content-box;border:0;line-height:1.25em;margin:var(--universal-margin);height:.0625rem;background:linear-gradient(to right, transparent, var(--border-color) 20%, var(--border-color) 80%, transparent)}blockquote{display:block;position:relative;font-style:italic;color:var(--secondary-fore-color);margin:var(--universal-margin);padding:calc(3 * var(--universal-padding));border:.0625rem solid var(--secondary-border-color);border-left:.375rem solid var(--blockquote-color);border-radius:0 var(--universal-border-radius) var(--universal-border-radius) 0}blockquote:before{position:absolute;top:calc(0rem - var(--universal-padding));left:0;font-family:sans-serif;font-size:3rem;font-weight:700;content:"\201c";color:var(--blockquote-color)}blockquote[cite]:after{font-style:normal;font-size:.75em;font-weight:700;content:"\a—  " attr(cite);white-space:pre}code,kbd,pre,samp{font-family:Menlo, Consolas, monospace;font-size:.85em}code{background:var(--secondary-back-color);border-radius:var(--universal-border-radius);padding:calc(var(--universal-padding) / 4) calc(var(--universal-padding) / 2)}kbd{background:var(--fore-color);color:var(--back-color);border-radius:var(--universal-border-radius);padding:calc(var(--universal-padding) / 4) calc(var(--universal-padding) / 2)}pre{overflow:auto;background:var(--secondary-back-color);padding:calc(1.5 * var(--universal-padding));margin:var(--universal-margin);border:.0625rem solid var(--secondary-border-color);border-left:.25rem solid var(--pre-color);border-radius:0 var(--universal-border-radius) var(--universal-border-radius) 0}sup,sub,code,kbd{line-height:0;position:relative;vertical-align:baseline}small,sup,sub,figcaption{font-size:.75em}sup{top:-.5em}sub{bottom:-.25em}figcaption{color:var(--secondary-fore-color)}a{text-decoration:none}a:link{color:var(--a-link-color)}a:visited{color:var(--a-visited-color)}a:hover,a:focus{text-decoration:underline}.container{margin:0 auto;padding:0 calc(1.5 * var(--universal-padding))}.row{box-sizing:border-box;display:flex;flex:0 1 auto;flex-flow:row wrap}.col-sm,[class^='col-sm-'],[class^='col-sm-offset-'],.row[class*='cols-sm-']>*{box-sizing:border-box;flex:0 0 auto;padding:0 calc(var(--universal-padding) / 2)}.col-sm,.row.cols-sm>*{flex-grow:1;flex-basis:0}.col-sm-1,.row.cols-sm-1>*{flex-basis:8.33333%}.col-sm-offset-0{margin-left:0}.col-sm-2,.row.cols-sm-2>*{flex-basis:16.66667%}.col-sm-offset-1{margin-left:8.33333%}.col-sm-3,.row.cols-sm-3>*{flex-basis:25%}.col-sm-offset-2{margin-left:16.66667%}.col-sm-4,.row.cols-sm-4>*{flex-basis:33.33333%}.col-sm-offset-3{margin-left:25%}.col-sm-5,.row.cols-sm-5>*{flex-basis:41.66667%}.col-sm-offset-4{margin-left:33.33333%}.col-sm-6,.row.cols-sm-6>*{flex-basis:50%}.col-sm-offset-5{margin-left:41.66667%}.col-sm-7,.row.cols-sm-7>*{flex-basis:58.33333%}.col-sm-offset-6{margin-left:50%}.col-sm-8,.row.cols-sm-8>*{flex-basis:66.66667%}.col-sm-offset-7{margin-left:58.33333%}.col-sm-9,.row.cols-sm-9>*{flex-basis:75%}.col-sm-offset-8{margin-left:66.66667%}.col-sm-10,.row.cols-sm-10>*{flex-basis:83.33333%}.col-sm-offset-9{margin-left:75%}.col-sm-11,.row.cols-sm-11>*{flex-basis:91.66667%}.col-sm-offset-10{margin-left:83.33333%}.col-sm-12,.row.cols-sm-12>*{flex-basis:100%}.col-sm-offset-11{margin-left:91.66667%}.col-sm-normal{order:initial}.col-sm-first{order:-999}.col-sm-last{order:999}@media screen and (min-width: 768px){.col-md,[class^='col-md-'],[class^='col-md-offset-'],.row[class*='cols-md-']>*{box-sizing:border-box;flex:0 0 auto;padding:0 calc(var(--universal-padding) / 2)}.col-md,.row.cols-md>*{flex-grow:1;flex-basis:0}.col-md-1,.row.cols-md-1>*{flex-basis:8.33333%}.col-md-offset-0{margin-left:0}.col-md-2,.row.cols-md-2>*{flex-basis:16.66667%}.col-md-offset-1{margin-left:8.33333%}.col-md-3,.row.cols-md-3>*{flex-basis:25%}.col-md-offset-2{margin-left:16.66667%}.col-md-4,.row.cols-md-4>*{flex-basis:33.33333%}.col-md-offset-3{margin-left:25%}.col-md-5,.row.cols-md-5>*{flex-basis:41.66667%}.col-md-offset-4{margin-left:33.33333%}.col-md-6,.row.cols-md-6>*{flex-basis:50%}.col-md-offset-5{margin-left:41.66667%}.col-md-7,.row.cols-md-7>*{flex-basis:58.33333%}.col-md-offset-6{margin-left:50%}.col-md-8,.row.cols-md-8>*{flex-basis:66.66667%}.col-md-offset-7{margin-left:58.33333%}.col-md-9,.row.cols-md-9>*{flex-basis:75%}.col-md-offset-8{margin-left:66.66667%}.col-md-10,.row.cols-md-10>*{flex-basis:83.33333%}.col-md-offset-9{margin-left:75%}.col-md-11,.row.cols-md-11>*{flex-basis:91.66667%}.col-md-offset-10{margin-left:83.33333%}.col-md-12,.row.cols-md-12>*{flex-basis:100%}.col-md-offset-11{margin-left:91.66667%}.col-md-normal{order:initial}.col-md-first{order:-999}.col-md-last{order:999}}@media screen and (min-width: 1280px){.col-lg,[class^='col-lg-'],[class^='col-lg-offset-'],.row[class*='cols-lg-']>*{box-sizing:border-box;flex:0 0 auto;padding:0 calc(var(--universal-padding) / 2)}.col-lg,.row.cols-lg>*{flex-grow:1;flex-basis:0}.col-lg-1,.row.cols-lg-1>*{flex-basis:8.33333%}.col-lg-offset-0{margin-left:0}.col-lg-2,.row.cols-lg-2>*{flex-basis:16.66667%}.col-lg-offset-1{margin-left:8.33333%}.col-lg-3,.row.cols-lg-3>*{flex-basis:25%}.col-lg-offset-2{margin-left:16.66667%}.col-lg-4,.row.cols-lg-4>*{flex-basis:33.33333%}.col-lg-offset-3{margin-left:25%}.col-lg-5,.row.cols-lg-5>*{flex-basis:41.66667%}.col-lg-offset-4{margin-left:33.33333%}.col-lg-6,.row.cols-lg-6>*{flex-basis:50%}.col-lg-offset-5{margin-left:41.66667%}.col-lg-7,.row.cols-lg-7>*{flex-basis:58.33333%}.col-lg-offset-6{margin-left:50%}.col-lg-8,.row.cols-lg-8>*{flex-basis:66.66667%}.col-lg-offset-7{margin-left:58.33333%}.col-lg-9,.row.cols-lg-9>*{flex-basis:75%}.col-lg-offset-8{margin-left:66.66667%}.col-lg-10,.row.cols-lg-10>*{flex-basis:83.33333%}.col-lg-offset-9{margin-left:75%}.col-lg-11,.row.cols-lg-11>*{flex-basis:91.66667%}.col-lg-offset-10{margin-left:83.33333%}.col-lg-12,.row.cols-lg-12>*{flex-basis:100%}.col-lg-offset-11{margin-left:91.66667%}.col-lg-normal{order:initial}.col-lg-first{order:-999}.col-lg-last{order:999}}
+:root{--fore-color:#111;--secondary-fore-color:#444;--back-color:#f8f8f8;--secondary-back-color:#f0f0f0;--blockquote-color:#f57c00;--pre-color:#1565c0;--border-color:#aaa;--secondary-border-color:#ddd;--heading-ratio:1.19;--universal-margin:.5rem;--universal-padding:.5rem;--universal-border-radius:.125rem;--a-link-color:#0277bd;--a-visited-color:#01579b}html{font-size:16px}a,b,del,em,i,ins,q,span,strong,u{font-size:1em}html,*{font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Helvetica, sans-serif;line-height:1.5;-webkit-text-size-adjust:100%}*{font-size:1rem}body{margin:0;color:var(--fore-color);background:var(--back-color)}details{display:block}summary{display:list-item}abbr[title]{border-bottom:none;text-decoration:underline dotted}input{overflow:visible}img{max-width:100%;height:auto}h1,h2,h3,h4,h5,h6{line-height:1.2;margin:calc(1.5 * var(--universal-margin)) var(--universal-margin);font-weight:500}h1 small,h2 small,h3 small,h4 small,h5 small,h6 small{color:var(--secondary-fore-color);display:block;margin-top:-.25rem}h1{font-size:calc(1rem * var(--heading-ratio) * var(--heading-ratio) * var(--heading-ratio) * var(--heading-ratio))}h2{font-size:calc(1rem * var(--heading-ratio) * var(--heading-ratio) * var(--heading-ratio))}h3{font-size:calc(1rem * var(--heading-ratio) * var(--heading-ratio))}h4{font-size:calc(1rem * var(--heading-ratio))}h5{font-size:1rem}h6{font-size:calc(1rem / var(--heading-ratio))}p{margin:var(--universal-margin)}ol,ul{margin:var(--universal-margin);padding-left:calc(2 * var(--universal-margin))}b,strong{font-weight:700}hr{box-sizing:content-box;border:0;line-height:1.25em;margin:var(--universal-margin);height:.0625rem;background:linear-gradient(to right, transparent, var(--border-color) 20%, var(--border-color) 80%, transparent)}blockquote{display:block;position:relative;font-style:italic;color:var(--secondary-fore-color);margin:var(--universal-margin);padding:calc(3 * var(--universal-padding));border:.0625rem solid var(--secondary-border-color);border-left:.375rem solid var(--blockquote-color);border-radius:0 var(--universal-border-radius) var(--universal-border-radius) 0}blockquote:before{position:absolute;top:calc(0rem - var(--universal-padding));left:0;font-family:sans-serif;font-size:3rem;font-weight:700;content:"\201c";color:var(--blockquote-color)}blockquote[cite]:after{font-style:normal;font-size:.75em;font-weight:700;content:"\a—  " attr(cite);white-space:pre}code,kbd,pre,samp{font-family:Menlo, Consolas, monospace;font-size:.85em}code{background:var(--secondary-back-color);border-radius:var(--universal-border-radius);padding:calc(var(--universal-padding) / 4) calc(var(--universal-padding) / 2)}kbd{background:var(--fore-color);color:var(--back-color);border-radius:var(--universal-border-radius);padding:calc(var(--universal-padding) / 4) calc(var(--universal-padding) / 2)}pre{overflow:auto;background:var(--secondary-back-color);padding:calc(1.5 * var(--universal-padding));margin:var(--universal-margin);border:.0625rem solid var(--secondary-border-color);border-left:.25rem solid var(--pre-color);border-radius:0 var(--universal-border-radius) var(--universal-border-radius) 0}sup,sub,code,kbd{line-height:0;position:relative;vertical-align:baseline}small,sup,sub,figcaption{font-size:.75em}sup{top:-.5em}sub{bottom:-.25em}figcaption{color:var(--secondary-fore-color)}a{text-decoration:none}a:link{color:var(--a-link-color)}a:visited{color:var(--a-visited-color)}a:hover,a:focus{text-decoration:underline}.container{margin:0 auto;padding:0 calc(1.5 * var(--universal-padding))}.row{box-sizing:border-box;display:flex;flex:0 1 auto;flex-flow:row wrap}.col-sm,[class^='col-sm-'],[class^='col-sm-offset-'],.row[class*='cols-sm-']>*{box-sizing:border-box;flex:0 0 auto;padding:0 calc(var(--universal-padding) / 2)}.col-sm,.row.cols-sm>*{flex-grow:1;flex-basis:0}.col-sm-1,.row.cols-sm-1>*{flex-basis:8.33333%}.col-sm-offset-0{margin-left:0}.col-sm-2,.row.cols-sm-2>*{flex-basis:16.66667%}.col-sm-offset-1{margin-left:8.33333%}.col-sm-3,.row.cols-sm-3>*{flex-basis:25%}.col-sm-offset-2{margin-left:16.66667%}.col-sm-4,.row.cols-sm-4>*{flex-basis:33.33333%}.col-sm-offset-3{margin-left:25%}.col-sm-5,.row.cols-sm-5>*{flex-basis:41.66667%}.col-sm-offset-4{margin-left:33.33333%}.col-sm-6,.row.cols-sm-6>*{flex-basis:50%}.col-sm-offset-5{margin-left:41.66667%}.col-sm-7,.row.cols-sm-7>*{flex-basis:58.33333%}.col-sm-offset-6{margin-left:50%}.col-sm-8,.row.cols-sm-8>*{flex-basis:66.66667%}.col-sm-offset-7{margin-left:58.33333%}.col-sm-9,.row.cols-sm-9>*{flex-basis:75%}.col-sm-offset-8{margin-left:66.66667%}.col-sm-10,.row.cols-sm-10>*{flex-basis:83.33333%}.col-sm-offset-9{margin-left:75%}.col-sm-11,.row.cols-sm-11>*{flex-basis:91.66667%}.col-sm-offset-10{margin-left:83.33333%}.col-sm-12,.row.cols-sm-12>*{flex-basis:100%}.col-sm-offset-11{margin-left:91.66667%}.col-sm-normal{order:initial}.col-sm-first{order:-999}.col-sm-last{order:999}@media screen and (min-width: 768px){.col-md,[class^='col-md-'],[class^='col-md-offset-'],.row[class*='cols-md-']>*{box-sizing:border-box;flex:0 0 auto;padding:0 calc(var(--universal-padding) / 2)}.col-md,.row.cols-md>*{flex-grow:1;flex-basis:0}.col-md-1,.row.cols-md-1>*{flex-basis:8.33333%}.col-md-offset-0{margin-left:0}.col-md-2,.row.cols-md-2>*{flex-basis:16.66667%}.col-md-offset-1{margin-left:8.33333%}.col-md-3,.row.cols-md-3>*{flex-basis:25%}.col-md-offset-2{margin-left:16.66667%}.col-md-4,.row.cols-md-4>*{flex-basis:33.33333%}.col-md-offset-3{margin-left:25%}.col-md-5,.row.cols-md-5>*{flex-basis:41.66667%}.col-md-offset-4{margin-left:33.33333%}.col-md-6,.row.cols-md-6>*{flex-basis:50%}.col-md-offset-5{margin-left:41.66667%}.col-md-7,.row.cols-md-7>*{flex-basis:58.33333%}.col-md-offset-6{margin-left:50%}.col-md-8,.row.cols-md-8>*{flex-basis:66.66667%}.col-md-offset-7{margin-left:58.33333%}.col-md-9,.row.cols-md-9>*{flex-basis:75%}.col-md-offset-8{margin-left:66.66667%}.col-md-10,.row.cols-md-10>*{flex-basis:83.33333%}.col-md-offset-9{margin-left:75%}.col-md-11,.row.cols-md-11>*{flex-basis:91.66667%}.col-md-offset-10{margin-left:83.33333%}.col-md-12,.row.cols-md-12>*{flex-basis:100%}.col-md-offset-11{margin-left:91.66667%}.col-md-normal{order:initial}.col-md-first{order:-999}.col-md-last{order:999}}@media screen and (min-width: 1280px){.col-lg,[class^='col-lg-'],[class^='col-lg-offset-'],.row[class*='cols-lg-']>*{box-sizing:border-box;flex:0 0 auto;padding:0 calc(var(--universal-padding) / 2)}.col-lg,.row.cols-lg>*{flex-grow:1;flex-basis:0}.col-lg-1,.row.cols-lg-1>*{flex-basis:8.33333%}.col-lg-offset-0{margin-left:0}.col-lg-2,.row.cols-lg-2>*{flex-basis:16.66667%}.col-lg-offset-1{margin-left:8.33333%}.col-lg-3,.row.cols-lg-3>*{flex-basis:25%}.col-lg-offset-2{margin-left:16.66667%}.col-lg-4,.row.cols-lg-4>*{flex-basis:33.33333%}.col-lg-offset-3{margin-left:25%}.col-lg-5,.row.cols-lg-5>*{flex-basis:41.66667%}.col-lg-offset-4{margin-left:33.33333%}.col-lg-6,.row.cols-lg-6>*{flex-basis:50%}.col-lg-offset-5{margin-left:41.66667%}.col-lg-7,.row.cols-lg-7>*{flex-basis:58.33333%}.col-lg-offset-6{margin-left:50%}.col-lg-8,.row.cols-lg-8>*{flex-basis:66.66667%}.col-lg-offset-7{margin-left:58.33333%}.col-lg-9,.row.cols-lg-9>*{flex-basis:75%}.col-lg-offset-8{margin-left:66.66667%}.col-lg-10,.row.cols-lg-10>*{flex-basis:83.33333%}.col-lg-offset-9{margin-left:75%}.col-lg-11,.row.cols-lg-11>*{flex-basis:91.66667%}.col-lg-offset-10{margin-left:83.33333%}.col-lg-12,.row.cols-lg-12>*{flex-basis:100%}.col-lg-offset-11{margin-left:91.66667%}.col-lg-normal{order:initial}.col-lg-first{order:-999}.col-lg-last{order:999}}:root{--input-focus-color:#0288d1;--input-invalid-color:#d32f2f;--button-back-color:#e2e2e2;--button-hover-back-color:#dcdcdc;--button-fore-color:#212121;--button-border-color:transparent;--button-hover-border-color:transparent}form{background:var(--secondary-back-color);border:.0625rem solid var(--secondary-border-color);border-radius:var(--universal-border-radius);margin:var(--universal-margin);padding:calc(2 * var(--universal-padding)) var(--universal-padding)}fieldset{border:.0625rem solid var(--secondary-border-color);border-radius:var(--universal-border-radius);margin:calc(var(--universal-margin) / 4);padding:var(--universal-padding)}legend{box-sizing:border-box;display:table;max-width:100%;white-space:normal;font-weight:700;padding:calc(var(--universal-padding) / 2)}label{padding:calc(var(--universal-padding) / 2) var(--universal-padding)}.input-group{display:inline-block}.input-group.fluid{display:flex;align-items:center;justify-content:center}.input-group.fluid>input{flex-grow:1;flex-basis:0px}@media screen and (max-width: 767px){.input-group.fluid{align-items:stretch;flex-direction:column}}.input-group.vertical{display:flex;align-items:stretch;flex-direction:column}.input-group.vertical>input{flex-grow:1;flex-basis:0px}[type="number"]::-webkit-inner-spin-button,[type="number"]::-webkit-outer-spin-button{height:auto}[type="search"]{-webkit-appearance:textfield;outline-offset:-2px}[type="search"]::-webkit-search-cancel-button,[type="search"]::-webkit-search-decoration{-webkit-appearance:none}input:not([type]),[type="text"],[type="email"],[type="number"],[type="search"],[type="password"],[type="url"],[type="tel"],textarea,select{box-sizing:border-box;background:var(--back-color);color:var(--fore-color);border:.0625rem solid var(--secondary-border-color);border-radius:var(--universal-border-radius);margin:calc(var(--universal-margin) / 2);padding:var(--universal-padding) calc(1.5 * var(--universal-padding))}input:not([type="button"]):not([type="submit"]):not([type="reset"]):hover,input:not([type="button"]):not([type="submit"]):not([type="reset"]):focus,textarea:hover,textarea:focus,select:hover,select:focus{border-color:var(--input-focus-color);box-shadow:none}input:not([type="button"]):not([type="submit"]):not([type="reset"]):invalid,input:not([type="button"]):not([type="submit"]):not([type="reset"]):focus:invalid,textarea:invalid,textarea:focus:invalid,select:invalid,select:focus:invalid{border-color:var(--input-invalid-color);box-shadow:none}input:not([type="button"]):not([type="submit"]):not([type="reset"])[readonly],textarea[readonly],select[readonly]{background:var(--secondary-back-color)}select{max-width:100%}option{overflow:hidden;text-overflow:ellipsis}:placeholder-shown{color:var(--fore-color)}::-ms-placeholder{color:var(--fore-color);opacity:0.54}button::-moz-focus-inner,[type="button"]::-moz-focus-inner,[type="reset"]::-moz-focus-inner,[type="submit"]::-moz-focus-inner{border-style:none;padding:0}button,html [type="button"],[type="reset"],[type="submit"]{-webkit-appearance:button}button{overflow:visible;text-transform:none}button,[type="button"],[type="submit"],[type="reset"],a.button,label.button,.button,a[role="button"],label[role="button"],[role="button"]{display:inline-block;background:var(--button-back-color);color:var(--button-fore-color);border:.0625rem solid var(--button-border-color);border-radius:var(--universal-border-radius);padding:var(--universal-padding) calc(1.5 * var(--universal-padding));margin:var(--universal-margin);text-decoration:none;cursor:pointer;transition:background 0.3s}button:hover,button:focus,[type="button"]:hover,[type="button"]:focus,[type="submit"]:hover,[type="submit"]:focus,[type="reset"]:hover,[type="reset"]:focus,a.button:hover,a.button:focus,label.button:hover,label.button:focus,.button:hover,.button:focus,a[role="button"]:hover,a[role="button"]:focus,label[role="button"]:hover,label[role="button"]:focus,[role="button"]:hover,[role="button"]:focus{background:var(--button-hover-back-color);border-color:var(--button-hover-border-color)}input:disabled,input[disabled],textarea:disabled,textarea[disabled],select:disabled,select[disabled],button:disabled,button[disabled],.button:disabled,.button[disabled],[role="button"]:disabled,[role="button"][disabled]{cursor:not-allowed;opacity:.75}
diff --git a/docs/v3/DEVLOG.md b/docs/v3/DEVLOG.md
index eb59566..6b56d49 100644
--- a/docs/v3/DEVLOG.md
+++ b/docs/v3/DEVLOG.md
@@ -108,3 +108,5 @@
 - Created proper variables for `button`-like elements, built element syling on CSS variables.
 - Tested CSS variables for button, should allow for easy customization and additional styles, meaning it will be a breeze to add all the extra stuff as soon as possible.
 - Bundled up `[disabled]` styling for all elements in `input_control` as this should now be the default behavior of the code.
+- Dealt with #114. It shouldn't be a problem anymore.
+- Added mixins for `button` elements in `input_control`. They should now be perfectly usable.
diff --git a/src/flavors/mini-default.scss b/src/flavors/mini-default.scss
index ad49252..5f77a22 100644
--- a/src/flavors/mini-default.scss
+++ b/src/flavors/mini-default.scss
@@ -10,3 +10,5 @@
 
 @import '../mini/core';
 @import '../mini/grid';
+@import '../mini/input_control';
+@import '../mini/navigation';
diff --git a/src/flavors/mini-doc.scss b/src/flavors/mini-doc.scss
index 1d172f9..ed667dc 100644
--- a/src/flavors/mini-doc.scss
+++ b/src/flavors/mini-doc.scss
@@ -3,6 +3,7 @@
 @import '../mini/core';
 @import '../mini/grid';
 @import '../mini/input_control';
+@import '../mini/navigation';
 
 :not(.doc) {
   font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Helvetica, sans-serif;
diff --git a/src/mini/_core.scss b/src/mini/_core.scss
index 2f0c851..686dd41 100644
--- a/src/mini/_core.scss
+++ b/src/mini/_core.scss
@@ -78,6 +78,9 @@ $a-visited-color-var:           '--a-visited-color' !default;
 html {
   font-size: $base-root-font-size;  // Set root's font sizing.
 }
+a, b, del, em, i, ins, q, span, strong, u {
+  font-size: 1em; // Fix for elements inside headings not displaying properly.
+}
 
 @if $_apply-defaults-to-all {
   html, * {
diff --git a/src/mini/_input_control.scss b/src/mini/_input_control.scss
index 6c84da2..f8c2aaf 100644
--- a/src/mini/_input_control.scss
+++ b/src/mini/_input_control.scss
@@ -26,8 +26,8 @@ $button-hover-fore-color-var: '--button-hover-fore-color' !default;
 $button-border-color-var:       '--button-border-color' !default;
 $button-hover-border-color-var: '--button-hover-border-color' !default;
 // Check the `_input_control_mixins.scss` file to find this module's mixins.
-// @import 'input_control_mixins';
-// TODO: Uncomment above as soon as mixins are ready to be used.
+@import 'input_control_mixins';
+// TODO: Add a mixin for the switches.
 /* Input_control module CSS variable definitions */
 :root {
   #{$input-focus-color-var}: $input-focus-color;
diff --git a/src/mini/_input_control_mixins.scss b/src/mini/_input_control_mixins.scss
index e69de29..4ff9643 100644
--- a/src/mini/_input_control_mixins.scss
+++ b/src/mini/_input_control_mixins.scss
@@ -0,0 +1,46 @@
+// Input_control module's mixin definitions are here. For the module itself
+// check `_input_control.scss`.
+// Button color variant mixin:
+//  $button-alt-name: The name of the class used for the button variant.
+//  $button-alt-back-color: Background color for button variant.
+//  $button-alt-hover-back-color: Background color for button variant (hover).
+//  $button-alt-fore-color: Text color for button variant.
+//  $button-alt-border-color: Border color for button variant.
+//  $button-alt-hover-border-color: Border color for button variant (hover).
+@mixin make-button-alt-color ($button-alt-name, $button-alt-back-color : $button-back-color,
+  $button-alt-hover-back-color : $button-hover-back-color, $button-alt-fore-color : $button-fore-color,
+  $button-alt-border-color : $button-border-color, $button-alt-hover-border-color : $button-hover-border-color) {
+    button, [type="button"], [type="submit"], [type="reset"], .#{$button-class-name}, [role="button"] {
+      &.#{$button-alt-name} {
+        @if $button-alt-back-color != $button-back-color {
+          background: var(#{$button-alt-back-color-var});
+        }
+        @if $button-alt-fore-color != $button-fore-color{
+          color: var(#{$button-alt-fore-color-var});
+        }
+        @if $button-alt-border-color != $button-border-color{
+          border-color: var(#{$button-alt-border-color-var});
+        }
+        &:hover, &:focus {
+          @if $button-alt-hover-back-color != $button-hover-back-color{
+            background: var(#{$button-alt-hover-back-color-var});
+          }
+          @if $button-alt-hover-border-color != $button-hover-border-color{
+            border-color: var(#{$button-alt-hover-border-color-var});
+          }
+        }
+      }
+    }
+}
+// Button size variant mixin:
+//  $button-alt-name: The name of the class used for the button variant.
+//  $button-alt-padding: The padding of the button variant.
+//  $button-alt-margin The margin of the button variant.
+@mixin make-button-alt-size ($button-alt-name, $button-alt-padding, $button-alt-margin) {
+  button, [type="button"], [type="submit"], [type="reset"], .#{$button-class-name}, [role="button"] {
+    &.#{$button-alt-name} {
+      padding: $button-alt-padding;
+      margin: $button-alt-margin;
+    }
+  }
+}