themes-wordpress/karuna/assets/stylesheets/shared/_buttons.scss

button,
input[type="button"],
input[type="reset"],
input[type="submit"],
.button {
	border: 2px solid;
	border-color: $color__border-button;
	border-radius: 10px;
	background: $color__background-button;
	box-shadow: none;
	color: $color__link;
	font-weight: bold;
	@include font-size(1);
	letter-spacing: 1px;
	line-height: 1;
	padding: .8em 1.6em .8em;
	text-shadow: none;
	text-decoration: none;
	text-transform: uppercase;
	transition: 0.3s;

	&:hover {
		border-color: $color__border-button-hover;
		box-shadow: none;
		color: $color__link-hover;
	}

	&:active,
	&:focus {
		border-color: $color__border-button-focus;
		box-shadow: none;
		color: $color__link-hover;
	}
}