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// Name: Overlay
// Description: Defines styles for image overlays
//
// Component: `uk-overlay`
//
// Sub-objects: `uk-overlay-panel`
// `uk-overlay-hover`
// `uk-overlay-active`
// `uk-overlay-icon`
//
// Modifier: `uk-overlay-background`
// `uk-overlay-image`
// `uk-overlay-top`
// `uk-overlay-bottom`
// `uk-overlay-left`
// `uk-overlay-right`
// `uk-overlay-fade`
// `uk-overlay-scale`
// `uk-overlay-spin`
// `uk-overlay-grayscale`
// `uk-overlay-slide-top`
// `uk-overlay-slide-bottom`
// `uk-overlay-slide-left`
// `uk-overlay-slide-right`
//
// DEPRECATED: `uk-overlay-area`
// `uk-overlay-area-content`
// `uk-overlay-caption`
// `uk-overlay-toggle`
//
// States: `uk-hover`
// `uk-active`
// `uk-ignore`
//
// Uses: Icon: `[class*='uk-icon-']`
// `uk-border-circle`
//
// Markup:
//
// <!-- uk-overlay -->
// <figure class="uk-overlay" href="">
// <img src="" alt="">
// <figcaption class="uk-overlay-panel"></figcaption>
// </figure>
//
// ========================================================================
// Variables
// ========================================================================
@overlay-panel-padding: 20px;
@overlay-panel-color: #fff;
@overlay-panel-background: rgba(0,0,0,0.5);
@overlay-icon: "\f002";
@overlay-icon-size: 50px;
@overlay-icon-color: #fff;
@overlay-fade-in-opacity: 1;
@overlay-fade-out-opacity: 0.7;
@overlay-scale-in-scale: 1.1;
@overlay-scale-out-scale: 1;
@overlay-spin-in-scale: 1.1;
@overlay-spin-out-scale: 1;
@overlay-spin-in-rotate: 3deg;
@overlay-spin-out-rotate: 0deg;
@overlay-panel-link-color: inherit;
@overlay-panel-link-text-decoration: underline;
// DEPRECATED
@overlay-area-background: rgba(0,0,0,0.3);
@overlay-area-icon: "\f002";
@overlay-area-icon-size: 50px;
@overlay-area-icon-color: #fff;
@overlay-area-content-font-size: 1rem;
@overlay-area-content-padding-horizontal: 15px;
@overlay-area-content-color: #fff;
@overlay-area-content-link-color: inherit;
@overlay-caption-background: rgba(0,0,0,0.5);
@overlay-caption-padding: 15px;
@overlay-caption-color: #fff;
/* ========================================================================
Component: Overlay
========================================================================== */
/*
* 1. Container width fits its content
* 2. Create position context
* 3. Set max-width for responsive images to prevent `inline-block` consequences
* 4. Remove the gap between the container and its child element
* 5. Needed for transitions and to fixed wrong scaling calculation for images in Chrome
* 6. Fixed `overflow: hidden` to be ignored with border-radius and CSS transforms in Webkit
* 7. Reset margin
*/
.uk-overlay {
/* 1 */
display: inline-block;
/* 2 */
position: relative;
/* 3 */
max-width: 100%;
/* 4 */
vertical-align: middle;
/* 5 */
overflow: hidden;
/* 6 */
-webkit-transform: translateZ(0);
/* 7 */
margin: 0;
}
/* 6 for Safari */
.uk-overlay.uk-border-circle { -webkit-mask-image: -webkit-radial-gradient(circle, white 100%, black 100%); }
/*
* Remove margin from content
*/
.uk-overlay > :first-child { margin-bottom: 0; }
/* Sub-object `uk-overlay-panel`
========================================================================== */
/*
* 1. Position cover
* 2. Style
*/
.uk-overlay-panel {
/* 1 */
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
/* 2 */
padding: @overlay-panel-padding;
color: @overlay-panel-color;
.hook-overlay-panel;
}
/*
* Remove margin from the last-child
*/
.uk-overlay-panel > :last-child,
.uk-overlay-panel.uk-flex > * > :last-child { margin-bottom: 0; }
/*
* Keep color for headings if the default heading color is changed
*/
.uk-overlay-panel h1,
.uk-overlay-panel h2,
.uk-overlay-panel h3,
.uk-overlay-panel h4,
.uk-overlay-panel h5,
.uk-overlay-panel h6 { color: inherit; }
.uk-overlay-panel a:not([class]) {
color: @overlay-panel-link-color;
text-decoration: @overlay-panel-link-text-decoration;
}
.uk-overlay-panel a[class*='uk-icon-']:not(.uk-icon-button) { color: @overlay-panel-link-color; }
/* Sub-object `uk-overlay-hover` and `uk-overlay-active`
========================================================================== */
.uk-overlay-hover:not(:hover):not(.uk-hover) .uk-overlay-panel:not(.uk-ignore) { opacity: 0; }
.uk-overlay-active :not(.uk-active) > .uk-overlay-panel:not(.uk-ignore) { opacity: 0; }
/* Modifier `uk-overlay-background`
========================================================================== */
.uk-overlay-background {
background: @overlay-panel-background;
.hook-overlay-background;
}
/* Modifier `uk-overlay-image`
========================================================================== */
/*
* Reset panel
*/
.uk-overlay-image {
padding: 0;
.hook-overlay-image;
}
/* Position modifiers
========================================================================== */
.uk-overlay-top { bottom: auto; }
.uk-overlay-bottom { top: auto; }
.uk-overlay-left { right: auto; }
.uk-overlay-right { left: auto; }
/* Sub-object `uk-overlay-icon`
========================================================================== */
.uk-overlay-icon:before {
content: @overlay-icon;
position: absolute;
top: 50%;
left: 50%;
width: @overlay-icon-size;
height: @overlay-icon-size;
margin-top: -(@overlay-icon-size / 2);
margin-left: -(@overlay-icon-size / 2);
font-size: @overlay-icon-size;
line-height: 1;
font-family: FontAwesome;
text-align: center;
color: @overlay-icon-color;
.hook-overlay-icon;
}
/* Transitions
========================================================================== */
.uk-overlay-fade,
.uk-overlay-scale,
.uk-overlay-spin,
.uk-overlay-grayscale,
.uk-overlay-blur,
[class*='uk-overlay-slide'] {
transition-duration: 0.3s;
transition-timing-function: ease-out;
transition-property: opacity, transform, filter;
}
.uk-overlay-active .uk-overlay-fade,
.uk-overlay-active .uk-overlay-scale,
.uk-overlay-active .uk-overlay-spin,
.uk-overlay-active [class*='uk-overlay-slide'] { transition-duration: 0.8s; }
/*
* Fade
*/
.uk-overlay-fade { opacity: @overlay-fade-out-opacity; }
.uk-overlay-hover:hover .uk-overlay-fade,
.uk-overlay-hover.uk-hover .uk-overlay-fade,
.uk-overlay-active .uk-active > .uk-overlay-fade { opacity: @overlay-fade-in-opacity; }
/*
* Scale
*/
.uk-overlay-scale {
-webkit-transform: scale(@overlay-scale-out-scale);
transform: scale(@overlay-scale-out-scale);
}
.uk-overlay-hover:hover .uk-overlay-scale,
.uk-overlay-hover.uk-hover .uk-overlay-scale,
.uk-overlay-active .uk-active > .uk-overlay-scale {
-webkit-transform: scale(@overlay-scale-in-scale);
transform: scale(@overlay-scale-in-scale);
}
/*
* Spin
*/
.uk-overlay-spin {
-webkit-transform: scale(@overlay-spin-out-scale) rotate(@overlay-spin-out-rotate);
transform: scale(@overlay-spin-out-scale) rotate(@overlay-spin-out-rotate);
}
.uk-overlay-hover:hover .uk-overlay-spin,
.uk-overlay-hover.uk-hover .uk-overlay-spin,
.uk-overlay-active .uk-active > .uk-overlay-spin {
-webkit-transform: scale(@overlay-spin-in-scale) rotate(@overlay-spin-in-rotate);
transform: scale(@overlay-spin-in-scale) rotate(@overlay-spin-in-rotate);
}
/*
* Grayscale
*/
.uk-overlay-grayscale {
-webkit-filter: grayscale(100%);
filter: grayscale(100%);
}
.uk-overlay-hover:hover .uk-overlay-grayscale,
.uk-overlay-hover.uk-hover .uk-overlay-grayscale,
.uk-overlay-active .uk-active > .uk-overlay-grayscale {
-webkit-filter: grayscale(0%);
filter: grayscale(0%);
}
/*
* Slide
*/
[class*='uk-overlay-slide'] { opacity: 0; }
/* Top */
.uk-overlay-slide-top {
-webkit-transform: translateY(-100%);
transform: translateY(-100%);
}
/* Bottom */
.uk-overlay-slide-bottom {
-webkit-transform: translateY(100%);
transform: translateY(100%);
}
/* Left */
.uk-overlay-slide-left {
-webkit-transform: translateX(-100%);
transform: translateX(-100%);
}
/* Right */
.uk-overlay-slide-right {
-webkit-transform: translateX(100%);
transform: translateX(100%);
}
/* Hover */
.uk-overlay-hover:hover [class*='uk-overlay-slide'],
.uk-overlay-hover.uk-hover [class*='uk-overlay-slide'],
.uk-overlay-active .uk-active > [class*='uk-overlay-slide'] {
opacity: 1;
-webkit-transform: translateX(0) translateY(0);
transform: translateX(0) translateY(0);
}
/* DEPRECATED
* Sub-object `uk-overlay-area`
========================================================================== */
/*
* 1. Set position
* 2. Set style
* 3. Fade-in transition
*/
.uk-overlay-area {
/* 1 */
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
/* 2 */
background: @overlay-area-background;
/* 3 */
opacity: 0;
-webkit-transition: opacity 0.15s linear;
transition: opacity 0.15s linear;
-webkit-transform: translate3d(0,0,0);
.hook-overlay-area;
}
/*
* Hover
* 1. `uk-hover` to support touch devices
* 2. Use optional `uk-overlay-toggle` to trigger the overlay earlier
*/
.uk-overlay:hover .uk-overlay-area,
.uk-overlay.uk-hover .uk-overlay-area, // 1
.uk-overlay-toggle:hover .uk-overlay-area, // 2
.uk-overlay-toggle.uk-hover .uk-overlay-area { opacity: 1; }
/*
* Icon
*/
.uk-overlay-area:empty:before {
content: @overlay-area-icon;
position: absolute;
top: 50%;
left: 50%;
width: @overlay-area-icon-size;
height: @overlay-area-icon-size;
margin-top: -(@overlay-area-icon-size / 2);
margin-left: -(@overlay-area-icon-size / 2);
font-size: @overlay-area-icon-size;
line-height: 1;
font-family: FontAwesome;
text-align: center;
color: @overlay-area-icon-color;
.hook-overlay-area-icon;
}
/* DEPRECATED
* Sub-object `uk-overlay-area-content`
========================================================================== */
/*
* Remove whitespace between child elements when using `inline-block`
* Needed for Firefox
*/
.uk-overlay-area:not(:empty) { font-size: 0.001px; }
/*
* 1. Needed for vertical alignment
*/
.uk-overlay-area:not(:empty):before {
content: '';
display: inline-block;
height: 100%;
vertical-align: middle;
}
/*
* 1. Set vertical alignment
* 2. Reset whitespace hack
* 3. Set horizontal alignment
* 4. Set style
*/
.uk-overlay-area-content {
/* 1 */
display: inline-block;
box-sizing: border-box;
width: 100%;
vertical-align: middle;
/* 2 */
font-size: @overlay-area-content-font-size;
/* 3 */
text-align: center;
/* 4 */
padding: 0 @overlay-area-content-padding-horizontal;
color: @overlay-area-content-color;
.hook-overlay-area-content;
}
/*
* Remove margin from the last-child
*/
.uk-overlay-area-content > :last-child { margin-bottom: 0; }
/*
* Links in overlay area
*/
.uk-overlay-area-content a:not([class]),
.uk-overlay-area-content a:not([class]):hover { color: @overlay-area-content-link-color; }
/* DEPRECATED
* Sub-object `uk-overlay-caption`
========================================================================== */
/*
* 1. Set position
* 2. Set style
* 3. Fade-in transition
*/
.uk-overlay-caption {
/* 1 */
position: absolute;
bottom: 0;
left: 0;
right: 0;
/* 2 */
padding: @overlay-caption-padding;
background: @overlay-caption-background;
color: @overlay-caption-color;
/* 3 */
opacity: 0;
-webkit-transition: opacity 0.15s linear;
transition: opacity 0.15s linear;
-webkit-transform: translate3d(0,0,0);
.hook-overlay-caption;
}
/*
* Hover
* 1. `uk-hover` to support touch devices
* 2. Use optional `uk-overlay-toggle` to trigger the overlay earlier
*/
.uk-overlay:hover .uk-overlay-caption,
.uk-overlay.uk-hover .uk-overlay-caption, // 1
.uk-overlay-toggle:hover .uk-overlay-caption, // 2
.uk-overlay-toggle.uk-hover .uk-overlay-caption { opacity: 1; }
// Hooks
// ========================================================================
.hook-overlay-misc;
.hook-overlay-panel() {}
.hook-overlay-background() {}
.hook-overlay-image() {}
.hook-overlay-icon() {}
.hook-overlay-misc() {}
// DEPRECATED
.hook-overlay-area() {}
.hook-overlay-area-icon() {}
.hook-overlay-area-content() {}
.hook-overlay-caption() {}