Hover/scss/hover.scss

1342 lines
24 KiB
SCSS

/*
* Hover.css (http://ianlunn.co.uk/)
* Version: 1.0
* Author: Ian Lunn @IanLunn
* Author URL: http://ianlunn.co.uk/
* Github: https://github.com/IanLunn/Hover
* Made available under a MIT License:
* http://www.opensource.org/licenses/mit-license.php
* Hover.css Copyright Ian Lunn 2014.
*/
// Default options
$defaultDuration: .3s;
$primaryColour: #ececec;
$secondaryColour: #666;
$shadowColour: rgba(0, 0, 0, .6);
// As is often the case, some devices/browsers need additional code to get CSS to work
// in the most desired way. These mixins are used to quickly drop in hacks for each element
@mixin hideTapHighlightColor() {
//Prevent highlight colour when element is tapped
-webkit-tap-highlight-color: rgba(0,0,0,0);
}
@mixin hardwareAccel() {
//Improve performance on mobile/tablet devices
transform: translateZ(0);
}
@mixin improveAntiAlias() {
//Improve aliasing on mobile/tablet devices
box-shadow: 0 0 1px rgba(0, 0, 0, 0);
}
/* Default styles for the demo buttons */
.button {
margin: .4em;
padding: 1em;
cursor: pointer;
background: $primaryColour;
text-decoration: none;
color: $secondaryColour;
}
/* 2D TRANSITIONS */
/* Grow */
.grow {
display: inline-block;
transition-duration: $defaultDuration;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
transform: scale(1.1);
}
}
/* Shrink */
.shrink {
display: inline-block;
transition-duration: $defaultDuration;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
transform: scale(.9);
}
}
/* Pulse */
@keyframes pulse {
25% {
transform: scale(1.1);
}
75% {
transform: scale(.9);
}
}
.pulse {
display: inline-block;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
animation-name: pulse;
animation-duration: 1s;
animation-timing-function: linear;
animation-iteration-count: infinite;
}
}
/* Pulse Grow */
@keyframes pulse-grow {
to {
transform: scale(1.1);
}
}
.pulse-grow {
display: inline-block;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
animation-name: pulse-grow;
animation-duration: $defaultDuration;
animation-timing-function: linear;
animation-iteration-count: infinite;
animation-direction: alternate;
}
}
/* Pulse Shrink */
@keyframes pulse-shrink {
to {
transform: scale(.9);
}
}
.pulse-shrink {
display: inline-block;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
animation-name: pulse-shrink;
animation-duration: $defaultDuration;
animation-timing-function: linear;
animation-iteration-count: infinite;
animation-direction: alternate;
}
}
/* Push */
@keyframes push {
50% {
transform: scale(.8);
}
100% {
transform: scale(1);
}
}
.push {
display: inline-block;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
animation-name: push;
animation-duration: $defaultDuration;
animation-timing-function: linear;
animation-iteration-count: 1;
}
}
/* Pop */
@keyframes pop {
50% {
transform: scale(1.2);
}
100% {
transform: scale(1);
}
}
.pop {
display: inline-block;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
animation-name: pop;
animation-duration: $defaultDuration;
animation-timing-function: linear;
animation-iteration-count: 1;
}
}
/* Rotate */
.rotate {
display: inline-block;
transition-duration: $defaultDuration;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
transform: rotate(4deg);
}
}
/* Grow Rotate */
.grow-rotate {
display: inline-block;
transition-duration: $defaultDuration;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
transform: scale(1.1) rotate(4deg);
}
}
/* Float */
.float {
display: inline-block;
transition-duration: $defaultDuration;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
transform: translateY(-5px);
}
}
/* Sink */
.sink {
display: inline-block;
transition-duration: $defaultDuration;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
transform: translateY(5px);
}
}
/* Hover */
@keyframes hover {
50% {
transform: translateY(-3px);
}
100% {
transform: translateY(-6px);
}
}
.hover {
display: inline-block;
transition-duration: .5s;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
transform: translateY(-6px);
animation-name: hover;
animation-duration: 1.5s;
animation-delay: $defaultDuration;
animation-timing-function: linear;
animation-iteration-count: infinite;
animation-direction: alternate;
}
}
/* Hang */
@keyframes hang {
50% {
transform: translateY(3px);
}
100% {
transform: translateY(6px);
}
}
.hang {
display: inline-block;
transition-duration: .5s;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
transform: translateY(6px);
animation-name: hang;
animation-duration: 1.5s;
animation-delay: $defaultDuration;
animation-timing-function: linear;
animation-iteration-count: infinite;
animation-direction: alternate;
}
}
/* Skew */
.skew {
display: inline-block;
transition-duration: $defaultDuration;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
transform: skew(-10deg);
}
}
/* Skew Forward */
.skew-forward {
display: inline-block;
transition-duration: $defaultDuration;
transition-property: transform;
transform-origin: 0 100%;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
transform: skew(-10deg);
}
}
/* Wobble Vertical */
@keyframes wobble-vertical {
16.65% {
transform: translateY(8px);
}
33.3% {
transform: translateY(-6px);
}
49.95% {
transform: translateY(4px);
}
66.6% {
transform: translateY(-2px);
}
83.25% {
transform: translateY(1px);
}
100% {
transform: translateY(0);
}
}
.wobble-vertical {
display: inline-block;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
animation-name: wobble-vertical;
animation-duration: 1s;
animation-timing-function: ease-in-out;
animation-iteration-count: 1;
}
}
/* Wobble Horizontal */
@keyframes wobble-horizontal {
16.65% {
transform: translateX(8px);
}
33.3% {
transform: translateX(-6px);
}
49.95% {
transform: translateX(4px);
}
66.6% {
transform: translateX(-2px);
}
83.25% {
transform: translateX(1px);
}
100% {
transform: translateX(0);
}
}
.wobble-horizontal {
display: inline-block;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
animation-name: wobble-horizontal;
animation-duration: 1s;
animation-timing-function: ease-in-out;
animation-iteration-count: 1;
}
}
/* Wobble Top */
@keyframes wobble-top {
16.65% {
transform: skew(-12deg);
}
33.3% {
transform: skew(10deg);
}
49.95% {
transform: skew(-6deg);
}
66.6% {
transform: skew(4deg);
}
83.25% {
transform: skew(-2deg);
}
100% {
transform: skew(0);
}
}
.wobble-top {
display: inline-block;
transform-origin: 0 100%;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
animation-name: wobble-top;
animation-duration: 1s;
animation-timing-function: ease-in-out;
animation-iteration-count: 1;
}
}
/* Wobble Bottom */
@keyframes wobble-bottom {
16.65% {
transform: skew(-12deg);
}
33.3% {
transform: skew(10deg);
}
49.95% {
transform: skew(-6deg);
}
66.6% {
transform: skew(4deg);
}
83.25% {
transform: skew(-2deg);
}
100% {
transform: skew(0);
}
}
.wobble-bottom {
display: inline-block;
transform-origin: 100% 0;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
animation-name: wobble-bottom;
animation-duration: 1s;
animation-timing-function: ease-in-out;
animation-iteration-count: 1;
}
}
/* BORDER TRANSITIONS */
/* Border Fade */
.border-fade {
display: inline-block;
$borderWidth: 4px;
transition-duration: $defaultDuration;
transition-property: box-shadow;
@include hideTapHighlightColor();
@include hardwareAccel();
box-shadow:
inset 0 0 0 $borderWidth $primaryColour,
0 0 1px rgba(0, 0, 0, 0); /* Hack to improve aliasing on mobile/tablet devices */
&:hover {
box-shadow:
inset 0 0 0 $borderWidth $secondaryColour,
0 0 1px rgba(0, 0, 0, 0); /* Hack to improve aliasing on mobile/tablet devices */
}
}
/* Hollow */
.hollow {
display: inline-block;
$borderWidth: 4px;
transition-duration: $defaultDuration;
transition-property: background;
transform: translateZ(0); /* Hack to improve performance on mobile/tablet devices */
box-shadow:
inset 0 0 0 $borderWidth $primaryColour,
0 0 1px rgba(0, 0, 0, 0); /* Hack to improve aliasing on mobile/tablet devices */
&:hover {
background: none;
}
}
/* Trim */
.trim {
display: inline-block;
$outerBorderWidth: 4px;
$innerBorderWidth: 4px;
position: relative;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
content: '';
position: absolute;
border: white solid $innerBorderWidth;
top: $outerBorderWidth;
left: $outerBorderWidth;
right: $outerBorderWidth;
bottom: $outerBorderWidth;
opacity: 0;
transition-duration: $defaultDuration;
transition-property: opacity;
}
&:hover:before {
opacity: 1;
}
}
/* Outline Outward */
.outline-outward {
display: inline-block;
$outerBorderWidth: 4px;
$innerBorderWidth: 4px;
position: relative;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
content: '';
position: absolute;
border: $primaryColour solid $outerBorderWidth;
top: 0;
right: 0;
bottom: 0;
left: 0;
transition-duration: .3s;
transition-property: top right bottom left;
}
&:hover:before {
top: -($outerBorderWidth + $innerBorderWidth);
right: -($outerBorderWidth + $innerBorderWidth);
bottom: -($outerBorderWidth + $innerBorderWidth);
left: -($outerBorderWidth + $innerBorderWidth);
}
}
/* Outline Inward */
.outline-inward {
display: inline-block;
$outerBorderWidth: 4px;
$innerBorderWidth: 4px;
position: relative;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
content: '';
position: absolute;
border: $primaryColour solid $outerBorderWidth;
top: -($outerBorderWidth + $innerBorderWidth) * 2;
right: -($outerBorderWidth + $innerBorderWidth) * 2;
bottom: -($outerBorderWidth + $innerBorderWidth) * 2;
left: -($outerBorderWidth + $innerBorderWidth) * 2;
opacity: 0;
transition-duration: .3s;
transition-property: top right bottom left;
}
&:hover:before {
top: -($outerBorderWidth + $innerBorderWidth);
right: -($outerBorderWidth + $innerBorderWidth);
bottom: -($outerBorderWidth + $innerBorderWidth);
left: -($outerBorderWidth + $innerBorderWidth);
opacity: 1;
}
}
/* Round Corners */
.round-corners {
display: inline-block;
transition-duration: $defaultDuration;
transition-property: border-radius;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
border-radius: 1em;
}
}
/* SHADOW/GLOW TRANSITIONS */
/* Glow */
.glow {
display: inline-block;
transition-duration: $defaultDuration;
transition-property: box-shadow;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
box-shadow: 0 0 8px $shadowColour;
}
}
/* Box Shadow Outset */
.box-shadow-outset {
display: inline-block;
transition-duration: $defaultDuration;
transition-property: box-shadow;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:hover {
box-shadow: 2px 2px 2px $shadowColour;
}
}
/* Box Shadow Inset */
.box-shadow-inset {
display: inline-block;
transition-duration: $defaultDuration;
transition-property: box-shadow;
box-shadow: inset 0 0 0 $shadowColour,
0 0 1px rgba(0, 0, 0, 0); /* Hack to improve aliasing on mobile/tablet devices */
@include hideTapHighlightColor();
@include hardwareAccel();
&:hover {
box-shadow: inset 2px 2px 2px $shadowColour,
0 0 1px rgba(0, 0, 0, 0); /* Hack to improve aliasing on mobile/tablet devices */
}
}
/* Float Shadow */
.float-shadow {
display: inline-block;
position: relative;
transition-duration: $defaultDuration;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
top: 100%;
left: 5%;
height: 10px;
width: 90%;
opacity: 0;
background: radial-gradient(ellipse at center, rgba(0,0,0,.35) 0%,rgba(0,0,0,0) 80%); /* W3C */
transition-duration: $defaultDuration;
transition-property: transform opacity;
}
&:hover {
transform: translateY(-5px); /* move the element up by 5px */
&:before {
opacity: 1;
transform: translateY(5px); /* move the element down by 5px (it will stay in place because it's attached to the element that also moves up 5px) */
}
}
}
/* Hover Shadow */
@keyframes hover {
50% {
transform: translateY(-3px);
}
100% {
transform: translateY(-6px);
}
}
@keyframes hover-shadow {
0% {
transform: translateY(6px);
opacity: .4;
}
50% {
transform: translateY(3px);
opacity: 1;
}
100% {
transform: translateY(6px);
opacity: .4;
}
}
.hover-shadow {
display: inline-block;
position: relative;
transition-duration: $defaultDuration;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
top: 100%;
left: 5%;
height: 10px;
width: 90%;
opacity: 0;
background: radial-gradient(ellipse at center, rgba(0,0,0,.35) 0%,rgba(0,0,0,0) 80%); /* W3C */
transition-duration: $defaultDuration;
transition-property: transform opacity;
}
&:hover {
transform: translateY(-6px);
animation-name: hover;
animation-duration: 1.5s;
animation-delay: $defaultDuration;
animation-timing-function: linear;
animation-iteration-count: infinite;
animation-direction: alternate;
&:before {
opacity: .4;
transform: translateY(6px);
animation-name: hover-shadow;
animation-duration: 1.5s;
animation-delay: .3s;
animation-timing-function: linear;
animation-iteration-count: infinite;
animation-direction: alternate;
}
}
}
/* Shadow Radial */
.shadow-radial {
display: inline-block;
position: relative;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before,
&:after {
pointer-events: none;
position: absolute;
content: '';
left: 0;
width: 100%;
box-sizing: border-box;
background-repeat: no-repeat;
height: 5px;
opacity: 0;
transition-duration: $defaultDuration;
transition-property: opacity;
}
&:before {
bottom: 100%;
background: radial-gradient(ellipse at 50% 150%, $shadowColour 0%, rgba(0, 0, 0, 0) 80%);
}
&:after {
top: 100%;
background: radial-gradient(ellipse at 50% -50%, $shadowColour 0%, rgba(0, 0, 0, 0) 80%);
}
&:hover:before,
&:hover:after {
opacity: 1;
}
}
/* SPEECH BUBBLES */
$tipWidth: 10px; //the width of the speech bubble tip
$tipHeight: 10px; //the height of the speech bubble tip
$tipColour: $primaryColour;
/* Bubble Top */
.bubble-top {
display: inline-block;
position: relative;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
border-style: solid;
transition-duration: $defaultDuration;
left: calc(50% - #{$tipWidth});
border-width: 0 $tipWidth $tipHeight $tipWidth;
border-color: transparent transparent $tipColour transparent;
transition-property: top;
}
&:hover:before {
top: -($tipHeight);
}
}
/* Bubble Right */
.bubble-right {
display: inline-block;
position: relative;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
border-style: solid;
transition-duration: $defaultDuration;
transition-property: right;
top: calc(50% - #{$tipHeight});
right: 0;
border-width: $tipHeight 0 $tipHeight $tipWidth;
border-color: transparent transparent transparent $tipColour ;
}
&:hover:before {
right: -($tipWidth);
}
}
/* Bubble Bottom */
.bubble-bottom {
display: inline-block;
position: relative;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
border-style: solid;
transition-duration: $defaultDuration;
transition-property: bottom;
left: calc(50% - #{$tipWidth});
bottom: 0;
border-width: $tipHeight $tipWidth 0 $tipWidth;
border-color: $tipColour transparent transparent transparent;
}
&:hover:before {
bottom: -($tipHeight);
}
}
/* Bubble Left */
.bubble-left {
display: inline-block;
position: relative;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
border-style: solid;
transition-duration: $defaultDuration;
transition-property: left;
top: calc(50% - #{$tipHeight});
left: 0;
border-width: $tipHeight $tipWidth $tipHeight 0;
border-color: transparent $tipColour transparent transparent;
}
&:hover:before {
left: -($tipWidth);
}
}
/* Bubble Float Top */
.bubble-float-top {
display: inline-block;
position: relative;
transition-duration: $defaultDuration;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
left: calc(50% - #{$tipWidth});
top: 0;
border-style: solid;
border-width: 0 $tipWidth $tipHeight $tipWidth;
border-color: transparent transparent $tipColour transparent;
transition-duration: $defaultDuration;
transition-property: top;
}
&:hover {
transform: translateY(5px) translateZ(0);
}
&:hover:before {
top: -($tipHeight);
}
}
/* Bubble Float Right */
.bubble-float-right {
display: inline-block;
position: relative;
transition-duration: $defaultDuration;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
z-index: -1;
top: calc(50% - #{$tipHeight});
right: 0;
content: '';
border-style: solid;
border-width: $tipHeight 0 $tipHeight $tipWidth;
border-color: transparent transparent transparent $tipColour;
transition-duration: $defaultDuration;
transition-property: right;
}
&:hover {
transform: translateX(-5px);
}
&:hover:before {
right: -($tipWidth);
}
}
/* Bubble Float Bottom */
.bubble-float-bottom {
display: inline-block;
position: relative;
transition-duration: $defaultDuration;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
left: calc(50% - #{$tipWidth});
bottom: 0;
border-style: solid;
border-width: $tipHeight $tipWidth 0 $tipWidth;
border-color: $tipColour transparent transparent transparent;
transition-duration: $defaultDuration;
transition-property: bottom;
}
&:hover {
transform: translateY(-5px) translateZ(0);
}
&:hover:before {
bottom: -($tipHeight);
}
}
/* Bubble Float Left */
.bubble-float-left {
display: inline-block;
position: relative;
transition-duration: $defaultDuration;
transition-property: transform;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
z-index: -1;
content: '';
top: calc(50% - #{$tipHeight});
left: 0;
border-style: solid;
border-width: $tipHeight $tipWidth $tipHeight 0;
border-color: transparent $tipColour transparent transparent;
transition-duration: $defaultDuration;
transition-property: left;
}
&:hover {
transform: translateX(5px);
}
&:hover:before {
left: -($tipWidth);
}
}
/* CURLS */
// Curl dimensions
$curlWidth: 25px;
$curlHeight: 25px;
// Curl colours
$revealAreaColour: white; // reveal area behind the curl
$curlLineColour: #aaa; // crease line
$curlTransitionColour: #ccc; // colour transitioning from crease line to final colour
$curlLastColour: white; // final colour of the back of the curl
/* Curl Top Left */
.curl-top-left {
display: inline-block;
position: relative;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
content: '';
height: 0;
width: 0;
top: 0;
left: 0;
background: $revealAreaColour; /* IE9 */
background: linear-gradient(
135deg,
$revealAreaColour 45%,
$curlLineColour 50%,
$curlTransitionColour 56%,
$curlLastColour 80%
);
filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#ffffff', endColorstr='#000000');/*For IE7-8-9*/
z-index: 1000;
box-shadow: 1px 1px 1px rgba(0, 0, 0, .4);
transition-duration: $defaultDuration;
transition-property: width height;
}
&:hover:before {
width: $curlWidth;
height: $curlHeight;
}
}
/* Curl Top Right */
.curl-top-right {
display: inline-block;
position: relative;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
content: '';
height: 0;
width: 0;
top: 0;
right: 0;
background: $revealAreaColour; /* IE9 */
background: linear-gradient(
225deg,
$revealAreaColour 45%,
$curlLineColour 50%,
$curlTransitionColour 56%,
$curlLastColour 80%
);
box-shadow: -1px 1px 1px rgba(0, 0, 0, .4);
transition-duration: $defaultDuration;
transition-property: width height;
}
&:hover:before {
width: $curlWidth;
height: $curlHeight;
}
}
/* Curl Bottom Right */
.curl-bottom-right {
display: inline-block;
position: relative;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
content: '';
height: 0;
width: 0;
bottom: 0;
right: 0;
background: $revealAreaColour; /* IE9 */
background: linear-gradient(
315deg,
$revealAreaColour 45%,
$curlLineColour 50%,
$curlTransitionColour 56%,
$curlLastColour 80%
);
box-shadow: -1px -1px 1px rgba(0, 0, 0, .4);
transition-duration: $defaultDuration;
transition-property: width height;
}
&:hover:before {
width: $curlWidth;
height: $curlHeight;
}
}
/* Curl Bottom Left */
.curl-bottom-left {
display: inline-block;
position: relative;
@include hideTapHighlightColor();
@include hardwareAccel();
@include improveAntiAlias();
&:before {
pointer-events: none;
position: absolute;
content: '';
height: 0;
width: 0;
bottom: 0;
left: 0;
background: $revealAreaColour; /* IE9 */
background: linear-gradient(
45deg,
$revealAreaColour 45%,
$curlLineColour 50%,
$curlTransitionColour 56%,
$curlLastColour 80%
);
box-shadow: 1px -1px 1px rgba(0, 0, 0, .4);
transition-duration: $defaultDuration;
transition-property: width height;
}
&:hover:before {
width: $curlWidth;
height: $curlHeight;
}
}