_form-default.scss

label {
	color: $input-label;
	font-weight: 700;
}

input[type="text"],
input[type="search"],
input[type="password"],
input[type="number"],
input[type="email"],
input[type="url"],
input[type="tel"],
input[type="file"],
textarea,
select {
	@include form-spacing(padding, $form-space);
	background: $input-bg;
	color: $input-color;
	border: 1px solid $input-border;
	line-height: normal;
	display: block;
	width: 100%;
	box-shadow: $input-shadow;
	transition: $input-transition;

	&:focus {
		border-color: $input-border-focus;
		outline: none;
	}
}

input[type="file"] {
	&:hover { cursor: pointer; }
}

input[type="search"] {
	width: auto;
	display: inline-block;
}

select {
	height: ceil($form-line-height * 1.33);
}

select[multiple],
select[size] {
	height: auto;
}

input[type="checkbox"],
input[type="radio"] {
	width: auto;
	display: inline-block;
}

input[type="submit"],
input[type="reset"],
input[type="button"],
button {
	@include form-spacing(padding, $form-space $form-space * 2);
	@include form-font-size(14px);
	background: $form-button-background;
	color: $form-button-color;
	display: inline-block;
	font-weight: 400;
	text-transform: uppercase;
	border: 0;
	transition: $input-transition;

	&:hover {
		background: $form-button-background-hover;
	}
}

// WebKit-style focus
// @link https://github.com/twbs/bootstrap-sass/blob/master/assets/stylesheets/bootstrap/mixins/_tab-focus.scss [props]
input[type="checkbox"],
input[type="radio"],
input[type="submit"],
input[type="reset"],
input[type="button"],
button {
	&:focus {
		outline: thin dotted;
		outline: 5px auto -webkit-focus-ring-color;
		outline-offset: -2px;
	}
}