themes-wordpress/varia/sass/elements/_forms.scss

input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"],
input[type="search"],
input[type="number"],
input[type="tel"],
input[type="range"],
input[type="date"],
input[type="month"],
input[type="week"],
input[type="time"],
input[type="datetime"],
input[type="datetime-local"],
input[type="color"],
textarea {
	color: #{map-deep-get($config-elements, "form", "color", "text")};
	border: #{map-deep-get($config-elements, "form", "border", "width")} solid #{map-deep-get($config-elements, "form", "color", "border")};
	border-radius: #{map-deep-get($config-elements, "form", "border", "radius")};
	padding: #{map-deep-get($config-elements, "form", "padding")};

	&:focus {
		color: #{map-deep-get($config-elements, "form", "color", "text")};
		border-color: #{map-deep-get($config-elements, "form", "color", "border-focus")};
	}
}

select {
	border: #{map-deep-get($config-elements, "form", "border", "width")} solid #{map-deep-get($config-elements, "form", "color", "border")};
}

textarea {
	width: 100%;
}

// Vertically align checkbox + label relationship
input[type=checkbox] + label {
	display: inline;
	margin-left: 0.5em;
	margin-right: 2em;
	line-height: 1em;
}