rrui.css

/*===========================================================
= Inputs                                                    =
===========================================================*/

.rrui__input-field,
.rrui__select__button
{
	border        : none;
	border-bottom : 1px solid #C5D2E0;
	transition    : border 0.1s;
}

.rrui__input-field:focus,
.rrui__select__button:focus,
.rrui__select__native-expanded:focus + .rrui__select__button
{
	border-bottom-color: #03B2CB;
}

/*===========================================================
= Input                                                     =
===========================================================*/

.rrui__input
{
	/* `position: relative` is for the floating label absolute positioning
	   and also for `.rrui__select__options width` sizing */
	position : relative;
}

.rrui__input:not(.rrui__input--multiline),
.rrui__input-label
{
	height : calc(0.3rem * 6);
}

/* For native `<select/>` in Safari */
.rrui__select__native
{
	min-height : calc(0.3rem * 6);
}

.rrui__input-error
{
	margin-top : calc(0.3rem);
	color      : #D30F00;
}

/*===========================================================
= Input field                                               =
===========================================================*/

.rrui__input-field
{
	outline       : none;
	border-radius : 0;
	/* Some web browsers add <input/> padding by default */
	padding       : 0;
	appearance    : none;
}

.rrui__input-field--invalid,
.rrui__input-field--invalid:focus
{
	border-color: #EB2010;
}

.rrui__input-field--disabled
{
	cursor: default;
}

/*===========================================================
= Buttons                                                   =
===========================================================*/

/* Reset the default `<button/>` styles */
.rrui__select__button,
.rrui__select__option,
.rrui__select__close
{
	margin      : 0;
	padding     : 0;
	white-space : nowrap;
	outline     : none;
	appearance  : none;
	border      : none;
	background  : none;
	cursor      : pointer;
	font-size   : inherit;
	font-family : inherit;
	font-weight : inherit;
	font-style  : inherit;
}

/*===========================================================
= Select                                                    =
===========================================================*/

.rrui__expandable
{
	opacity : 0;
	pointer-events : none;

	transform        : scaleY(0);
	transform-origin : 50% top 0px;

	/* 250ms - too slow for short lists */
	transition : all 150ms cubic-bezier(.76,.04,.46,.75) 0ms;

	/* prevent white background showing through the transparent border */
	/* http://stackoverflow.com/questions/7473200/transparent-border-expands-background-color-image */
	background-clip         : padding-box;
	-webkit-background-clip : padding-box;
}

.rrui__expandable--expanded
{
	opacity        : 1;
	pointer-events : auto;

	transform        : scaleY(1);
	transform-origin : 50% top 0px;

	transition : all 150ms cubic-bezier(0.23, 1, 0.32, 1) 0ms;
}

.rrui__expandable--overlay
{
	position : absolute;
	z-index  : 1;
}

.rrui__expandable__content
{
	/*
	The inner block's `opacity` is animated too
	(it fades in and out by itself too).
	This is done to fade out the inner block when the dropdown is collapsed
	therefore hiding an otherwise bizarre and unwanted visual clutter
	*/
	opacity: 0;

	/* Mitigates inner content overlapping with itself creating a feeling of a mess */
	transition: opacity 150ms ease-out;
}

.rrui__expandable__content--expanded
{
	opacity: 1;
}

.rrui__shadow
{
	box-shadow : 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
}

.rrui__select
{
	user-select : none;
}

.rrui__select--menu
{
	position : relative;
}

.rrui__select__options
{
	margin           : 0;
	padding-left     : 0;
	padding-top      : calc(2 * 0.3rem);
	padding-bottom   : calc(2 * 0.3rem);
	overflow-y       : auto;
	background-color : white;
	list-style-type  : none;
	overflow-x       : hidden;
	box-sizing       : border-box;
}

.rrui__expandable--left-aligned
{
	left : 0;
}

.rrui__expandable--right-aligned
{
	right : 0;
}

.rrui__select__options--left-aligned
{
	left : calc(0.3rem * 4 * -1);
}

.rrui__select__options--right-aligned
{
	right : calc(0.3rem * 4 * -1);
}

.rrui__select__options:not(.rrui__select__options--menu)
{
	width : calc(100% + 0.3rem * 4 * 2);
}

.rrui__select__options--downward
{
	/* When an html page is overflown by a long list
	   then this bottom margin helps to see that
	   there's no more options left out being clipped or something */
	margin-bottom : 1em;
}

.rrui__select__options--upward
{
	bottom : 100%;

	/* When an html page is overflown by a long list
	   then this bottom margin helps to see that
	   there's no more options left out being clipped or something */
	margin-top : 1em;
}

.rrui__select__option
{
	display : block;
	width   : 100%;

	padding-left  : calc(0.3rem * 4);
	padding-right : calc(0.3rem * 4);

	padding-top    : calc(0.3rem * 1);
	padding-bottom : calc(0.3rem * 1);

	box-sizing  : border-box;
	text-align  : left;
	white-space : nowrap;
}

.rrui__select__option:hover
{
	background-color : #FBFDFD;
}

.rrui__select__button--disabled,
.rrui__select__option--disabled
{
	cursor : default;
}

.rrui__select__option-icon
{
	margin-right : calc(0.3rem * 3);
}

.rrui__select__options--upward
{
	transform-origin: 50% bottom 0px;
}

.rrui__select__option--focused
{
	background-color: #ECF1F6;
}

.rrui__select__option--focused:hover
{
	background-color: #EFF3F8;
}

.rrui__select__option:active
{
	background-color : #3678D1;
	color            : white;
}

.rrui__select__option-icon
{
	margin-right: 0.5em
}

.rrui__select__toggler,
.rrui__select__button,
.rrui__select__autocomplete
{
	height     : 100%;
	box-sizing : border-box;
}

.rrui__select__button
{
	border-bottom : 1px solid #C5D2E0;
	transition    : border 0.1s;

	/* Because Chrome adds `text-align: center` for all buttons */
	text-align : left;
}

.rrui__select__button:focus,
.rrui__select__native-expanded:focus + .rrui__select__button
{
	border-bottom-color: #03B2CB;
}

.rrui__select__button:active
{
	color: #03B2CB;
}

.rrui__select__button--expanded
{
	color: #3678D1;
}

.rrui__select__button--empty
{
	color: #888C91;
}

.rrui__select__button,
.rrui__select__option
{
	color : inherit;
}

/* Not introducing an animation on `.rrui__select__option`
   because it would introduce a little clutter due to
   focused option animation in autocomplete mode */
.rrui__select__button
{
	transition : color 30ms ease-out;
}

.rrui__select__selected-content
{
	display     : flex;
	align-items : center;
}

.rrui__select__selected-label
{
	flex          : 1 0 auto;
	overflow      : hidden;
	text-overflow : ellipsis;
}

.rrui__select__arrow
{
	width  : 0;
	height : 0;

	margin-left   : 0.35em;
	margin-top    : 0.1em;
	margin-bottom : 0.1em;

	opacity: 0.7;

	transition: opacity 100ms ease-out;

	/* border-width: arrow_height arrow_width/2 0 arrow_width/2 */
	border-width : 0.35em 0.2em 0 0.2em;

	border-style       : solid;
	border-left-color  : transparent;
	border-right-color : transparent;

	color: #B8BDC4;
}

.rrui__select__arrow--expanded
{
	opacity: 0.3;
}

.rrui__select__native-expanded
{
	position : absolute;
	left     : 0;
	z-index  : 1;
	opacity  : 0;
	cursor   : pointer;
}

.rrui__select__close
{
	/*
	Set `display` to `block` for fullscreen `.rrui__expandable` design.
	display      : block;
	*/
	display      : none;
	position     : fixed;
	top          : 0;
	right        : 0;
	z-index      : 1;
}

.rrui__select__close-icon
{
	margin-top   : calc(0.3rem * 2 + 4px);
	margin-right : calc(0.3rem * 2 + 4px);
	width        : calc(0.3rem * 5);
	height       : calc(0.3rem * 5);
}