server/core/css/inputs.scss

/* Specifically override browser styles */
input, textarea, select, button {
	font-family: 'Open Sans', Frutiger, Calibri, 'Myriad Pro', Myriad, sans-serif;
}
.select2-container-multi .select2-choices .select2-search-field input, .select2-search input, .ui-widget {
	font-family: 'Open Sans', Frutiger, Calibri, 'Myriad Pro', Myriad, sans-serif !important;
}

/* Simple selector to allow easy overriding */
select,
button,
input,
textarea {
	width: 130px;
	min-height: 32px;
	box-sizing: border-box;
}

/* Default global values */
select,
button, .button,
input:not([type='range']),
textarea,
#quota,	.pager li a {
	margin: 3px 3px 3px 0;
	padding: 7px 6px;
	font-size: 13px;
	background-color: #fff;
	color: #333;
	border: 1px solid #ddd;
	outline: none;
	border-radius: 3px;
	&:not(:disabled):not(.primary) {
		/* no border on quota */
		&:not(#quota):hover,
		&:focus,
		&.active {
		/* active class used for multiselect */
			border-color: #0082c9;
			outline: none;
		}
		&:active {
			outline: none;
			background-color: #fff;
		}
	}
	&:disabled {
		background-color: #eee;
		color: #999;
		cursor: default;
		opacity: 0.5;
	}
	/* Primary action button, use sparingly */
	&.primary {
		border: 1px solid #0082c9;
		background-color: #00a2e9;
		color: #fff;
		cursor: pointer;
		&:not(:disabled) {
			&:hover,
			&:focus {
				background-color: #0092d9;
			}
			&:active {
				background-color: #00a2e9;
			}
		}
		&:disabled {
			background-color: #00a2e9;
			color: #bbb;
		}
	}
}

/* Specific override */
input {
	&:not([type='radio']):not([type='checkbox']):not([type='range']):not([type='submit']):not([type='button']):not([type='reset']):not([type='color']):not([type='file']):not([type='image']) {
		-webkit-appearance: textfield;
		-moz-appearance: textfield;
	}
	&[type='radio'],
	&[type='checkbox'],
	&[type='file'],
	&[type='image'] {
		height: auto;
		width: auto;
	}
	/* Color input doesn't respect the initial height
 so we need to set a custom one */
	&[type='color'] {
		margin: 3px;
		padding: 0 2px;
		min-height: 30px;
		width: 40px;
		cursor: pointer;
	}
	&[type='hidden'] {
		height: 0;
		width: 0;
	}
	&[type='time'] {
		width: initial;
	}
}

/* 'Click' inputs */
select,
button, .button,
input[type='button'],
input[type='submit'],
input[type='reset'] {
	padding: 6px 12px;
	width: auto;
	min-height: 34px;
	cursor: pointer;
	box-sizing: border-box;
	background-color: #fafafa;
	box-shadow: inset 0 -2px 0 0 rgba(0, 0, 0, 0.15);
	&:active,
	&.active {
		box-shadow: inset 0 -1px 0 0 rgba(0, 0, 0, 0.15);
	}
}

/* Buttons */
button, .button,
input[type='button'],
input[type='submit'],
input[type='reset'] {
	font-weight: bold;
	/* Get rid of the ugly firefox dotted line */
	&::-moz-focus-inner {
		border: 0;
	}
}
button, .button {
	> span { 
		/* icon position inside buttons */
		&[class^='icon-'],
		&[class*=' icon-'] {
			display: inline-block;
			vertical-align: text-bottom;
			opacity: 0.5;
		}
	}
}

textarea {
	color: #555;
	cursor: text;
	font-family: inherit;
	height: auto;
	&:not(:disabled) {
		&:active,
		&:hover,
		&:focus {
			border-color: #ddd !important;
			background-color: #fff !important;
		}
	}
}

/* Override the ugly select arrow */
select {
	-webkit-appearance: none;
	-moz-appearance: none;
	appearance: none;
	background: url('../img/actions/triangle-s.svg') no-repeat right 4px center;
	background-color: inherit;
	outline: 0;
	padding-right: 24px !important;
}

/* Various Fixes */
button img,
.button img {
	cursor: pointer;
}
#quota {
	color: #555;
}
select,
.button.multiselect {
	font-weight: 400;
}

/* Radio & Checkboxes */
input {
	&[type='checkbox'],
	&[type='radio'] {
		&.radio,
		&.checkbox {
			position: absolute;
			left: -10000px;
			top: auto;
			width: 1px;
			height: 1px;
			overflow: hidden;
			+ label {
				user-select: none;
			}
			&:disabled + label,
			&:disabled + label:before {
				cursor: default;
			}
			+ label:before {
				content: '';
				display: inline-block;
				height: 12px;
				width: 12px;
				vertical-align: middle;
				border-radius: 50%;
				margin: 3px;
				margin-top: 1px;
				border: 1px solid #888;
			}
			&:not(:disabled):not(:checked) + label:hover:before,
			&:focus + label:before {
				border-color: #0082c9;
			}
			&:checked + label:before,
			&.checkbox:indeterminate + label:before {
			/* ^ :indeterminate have a strange behavior on radio,
			so we respecified the checkbox class again to be safe */
				box-shadow: inset 0px 0px 0px 2px #fff;
				background-color: #0082c9;
				border-color: #0082c9
			}
			&:disabled + label:before {
				background-color: #ccc !important; /* override other status */
			}
			&:checked:disabled + label:before {
				box-shadow: inset 0px 0px 0px 2px #fff;
				border-color: #aaa;
				background-color: #bbb;
			}
		}
		&.checkbox {
			+ label:before {
				border-radius: 1px;
				height: 10px;
				width: 10px;
				box-shadow: none !important;
				background-position: center;
			}
			&:checked + label:before {
				background-image: url('../img/actions/checkbox-mark.svg');
			}
			&:indeterminate + label:before {
				background-image: url('../img/actions/checkbox-mixed.svg');
			}
			&:indeterminate:disabled + label:before {
				border-color: #888;
			}
		}
		&.radio--white,
		&.checkbox--white {
			+ label:before {
				border-color: #aaa;
			}
			&:not(:disabled):not(:checked) + label:hover:before,
			&:focus + label:before {
				border-color: #fff;
			}
			&:checked + label:before,
			&.checkbox:indeterminate + label:before {
			/* ^ :indeterminate have a strange behavior on radio,
			so we respecified the checkbox class again to be safe */
				box-shadow: inset 0px 0px 0px 2px #000;
				background-color: #eee;
				border-color: #eee
			}
			&:disabled + label:before {
				background-color: #666 !important; /* override other status */
				border-color: #999 !important; /* override other status */
			}
			&:checked:disabled + label:before {
				box-shadow: inset 0px 0px 0px 2px #000;
				border-color: #666;
				background-color: #222;
			}
		}
		&.checkbox--white {
			&:checked + label:before {
				background-image: url('../img/actions/checkbox-mark-white.svg');
			}
			&:indeterminate + label:before {
				background-image: url('../img/actions/checkbox-mixed-white.svg');
			}
			&:checked:disabled + label:after {
				border-color: #aaa;
			}
			&:indeterminate:disabled + label:after {
				background-color: #aaa;
			}
		}
	}
}

/* Select2 overriding. Merged to core with vendor stylesheet */
.select2-drop {
	margin-top: -2px;
	&.select2-drop-active {
		border-color: #ddd;
	}
	.avatar {
		display: inline-block;
		margin-right: 8px;
		vertical-align: middle;
		img {
			cursor: pointer;
		}
	}
	.select2-search input {
		min-height: auto;
		background: url('../img/actions/search.svg') no-repeat right center !important;
		background-origin: content-box !important;
	}
	.select2-results {
		max-height: 250px;
		margin: 0;
		padding: 0;
		.select2-result-label {
			white-space: nowrap;
			overflow: hidden;
			text-overflow: ellipsis;
			span {
				cursor: pointer;
			}
		}
		.select2-result,
		.select2-no-results,
		.select2-searching {
			position: relative;
			display: list-item;
			padding: 12px;
			background-color: #fff;
			cursor: pointer;
			color: #222;
		}
		.select2-result {
			&.select2-selected {
				background-color: #f8f8f8;
			}
			&.select2-highlighted {
				background-color: #f8f8f8;
				color: #000;
			}
		}
	}
}
.select2-chosen,
#select2-drop {
	.avatar,
	.avatar img {
		cursor: pointer;
	}
}
.select2-container-multi {
	.select2-choices,
	&.select2-container-active .select2-choices {
		box-shadow: none;
		white-space: nowrap;
		text-overflow: ellipsis;
		background: #fff;
		color: #555;
		box-sizing: content-box;
		border-radius: 3px;
		border: 1px solid #ddd;
		margin: 0;
		padding: 2px 0;
		min-height: auto;
		.select2-search-choice {
			line-height: 20px;
			padding-left: 5px;
			&.select2-search-choice-focus,
			&:hover,
			&:active,
			& {
				background-image: none;
				background-color: #fff;
				color: #333;
				border: 1px solid #ddd;
			}
			.select2-search-choice-close {
				display: none;
			}
		}
		.select2-search-field input {
			line-height: 20px;
		}
	}
}
.select2-container {
	margin: 3px 3px 3px 0;
	&.select2-container-multi .select2-choices {
		display: flex;
		flex-wrap: wrap;
		li {
			float: none;
		}
	}
	.select2-choice {
		box-shadow: none;
		white-space: nowrap;
		text-overflow: ellipsis;
		background: #fff;
		color: #555;
		box-sizing: content-box;
		border-radius: 3px;
		border: 1px solid #ddd;
		margin: 0;
		padding: 2px 0;
		padding-left: 6px;
		min-height: auto;
		.select2-search-choice {
			line-height: 20px;
			padding-left: 5px;
			background-image: none;
			background-color: #f8f8f8;
			border-color: #f8f8f8;
			.select2-search-choice-close {
				display: none;
			}
			&.select2-search-choice-focus,
			&:hover {
				background-color: #f0f0f0;
				border-color: #f0f0f0;
			}
		}
		.select2-arrow {
			background: none;
			border-radius: 0;
			border: none;
			b {
				background: url('../img/actions/triangle-s.svg') no-repeat center !important;
				opacity: .5;
			}
		}
		&:hover .select2-arrow b,
		&:focus .select2-arrow b,
		&:active .select2-arrow b {
			opacity: .7;
		}
		.select2-search-field input {
			line-height: 20px;
		}
	}
}

/* Select menus - TODO: move to jquery-ui-fixes.css
----------------------------------*/
.ui-menu {
	padding: 0;
	.ui-menu-item a {
		&.ui-state-focus, &.ui-state-active {
			font-weight: inherit;
			margin: 0;
		}
	}
}

.ui-widget-content {
	background: #fff;
	border-top: none;
}

.ui-corner-all {
	border-radius: 0;
	border-bottom-left-radius: 3px;
	border-bottom-right-radius: 3px;
}

.ui-state-hover, .ui-widget-content .ui-state-hover, .ui-widget-header .ui-state-hover, .ui-state-focus, .ui-widget-content .ui-state-focus, .ui-widget-header .ui-state-focus {
	border: none;
	background: #f8f8f8;
}

/* Animation */
@keyframes shake {
	10%,
	90% {
		transform: translate(-1px);
	}
	20%,
	80% {
		transform: translate(2px);
	}
	30%,
	50%,
	70% {
		transform: translate(-4px);
	}
	40%,
	60% {
		transform: translate(4px);
	}
}
.shake {
	animation-name: shake;
	animation-duration: .7s;
	animation-timing-function: ease-out;
}