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reveal.scss
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@use "sass:math";
/**
* reveal.js
* http://revealjs.com
* MIT licensed
*
* Copyright (C) Hakim El Hattab, https://hakim.se
*/
@import 'layout';
/*********************************************
* GLOBAL STYLES
*********************************************/
html.reveal-full-page {
width: 100%;
height: 100%;
height: 100vh;
height: calc( var(--vh, 1vh) * 100 );
overflow: hidden;
}
.reveal-viewport {
height: 100%;
overflow: hidden;
position: relative;
line-height: 1;
margin: 0;
background-color: #fff;
color: #000;
}
// Force the presentation to cover the full viewport when we
// enter fullscreen mode. Fixes sizing issues in Safari.
.reveal-viewport:fullscreen {
top: 0 !important;
left: 0 !important;
width: 100% !important;
height: 100% !important;
transform: none !important;
}
/*********************************************
* VIEW FRAGMENTS
*********************************************/
.reveal .slides section .fragment {
opacity: 0;
visibility: hidden;
transition: all .2s ease;
will-change: opacity;
&.visible {
opacity: 1;
visibility: inherit;
}
&.disabled {
transition: none;
}
}
.reveal .slides section .fragment.grow {
opacity: 1;
visibility: inherit;
&.visible {
transform: scale( 1.3 );
}
}
.reveal .slides section .fragment.shrink {
opacity: 1;
visibility: inherit;
&.visible {
transform: scale( 0.7 );
}
}
.reveal .slides section .fragment.zoom-in {
transform: scale( 0.1 );
&.visible {
transform: none;
}
}
.reveal .slides section .fragment.fade-out {
opacity: 1;
visibility: inherit;
&.visible {
opacity: 0;
visibility: hidden;
}
}
.reveal .slides section .fragment.semi-fade-out {
opacity: 1;
visibility: inherit;
&.visible {
opacity: 0.5;
visibility: inherit;
}
}
.reveal .slides section .fragment.strike {
opacity: 1;
visibility: inherit;
&.visible {
text-decoration: line-through;
}
}
.reveal .slides section .fragment.fade-up {
transform: translate(0, 40px);
&.visible {
transform: translate(0, 0);
}
}
.reveal .slides section .fragment.fade-down {
transform: translate(0, -40px);
&.visible {
transform: translate(0, 0);
}
}
.reveal .slides section .fragment.fade-right {
transform: translate(-40px, 0);
&.visible {
transform: translate(0, 0);
}
}
.reveal .slides section .fragment.fade-left {
transform: translate(40px, 0);
&.visible {
transform: translate(0, 0);
}
}
.reveal .slides section .fragment.fade-in-then-out,
.reveal .slides section .fragment.current-visible {
opacity: 0;
visibility: hidden;
&.current-fragment {
opacity: 1;
visibility: inherit;
}
}
.reveal .slides section .fragment.fade-in-then-semi-out {
opacity: 0;
visibility: hidden;
&.visible {
opacity: 0.5;
visibility: inherit;
}
&.current-fragment {
opacity: 1;
visibility: inherit;
}
}
.reveal .slides section .fragment.highlight-red,
.reveal .slides section .fragment.highlight-current-red,
.reveal .slides section .fragment.highlight-green,
.reveal .slides section .fragment.highlight-current-green,
.reveal .slides section .fragment.highlight-blue,
.reveal .slides section .fragment.highlight-current-blue {
opacity: 1;
visibility: inherit;
}
.reveal .slides section .fragment.highlight-red.visible {
color: #ff2c2d
}
.reveal .slides section .fragment.highlight-green.visible {
color: #17ff2e;
}
.reveal .slides section .fragment.highlight-blue.visible {
color: #1b91ff;
}
.reveal .slides section .fragment.highlight-current-red.current-fragment {
color: #ff2c2d
}
.reveal .slides section .fragment.highlight-current-green.current-fragment {
color: #17ff2e;
}
.reveal .slides section .fragment.highlight-current-blue.current-fragment {
color: #1b91ff;
}
/*********************************************
* DEFAULT ELEMENT STYLES
*********************************************/
/* Fixes issue in Chrome where italic fonts did not appear when printing to PDF */
.reveal:after {
content: '';
font-style: italic;
}
.reveal iframe {
z-index: 1;
}
/** Prevents layering issues in certain browser/transition combinations */
.reveal a {
position: relative;
}
/*********************************************
* CONTROLS
*********************************************/
@keyframes bounce-right {
0%, 10%, 25%, 40%, 50% {transform: translateX(0);}
20% {transform: translateX(10px);}
30% {transform: translateX(-5px);}
}
@keyframes bounce-left {
0%, 10%, 25%, 40%, 50% {transform: translateX(0);}
20% {transform: translateX(-10px);}
30% {transform: translateX(5px);}
}
@keyframes bounce-down {
0%, 10%, 25%, 40%, 50% {transform: translateY(0);}
20% {transform: translateY(10px);}
30% {transform: translateY(-5px);}
}
$controlArrowSize: 3.6em;
$controlArrowSpacing: 1.4em;
$controlArrowLength: 2.6em;
$controlArrowThickness: 0.5em;
$controlsArrowAngle: 45deg;
$controlsArrowAngleHover: 40deg;
$controlsArrowAngleActive: 36deg;
@mixin controlsArrowTransform( $angle ) {
&:before {
transform: translateX(($controlArrowSize - $controlArrowLength)*0.5) translateY(($controlArrowSize - $controlArrowThickness)*0.5) rotate( $angle );
}
&:after {
transform: translateX(($controlArrowSize - $controlArrowLength)*0.5) translateY(($controlArrowSize - $controlArrowThickness)*0.5) rotate( -$angle );
}
}
.reveal .controls {
$spacing: 12px;
display: none;
position: absolute;
top: auto;
bottom: $spacing;
right: $spacing;
left: auto;
z-index: 11;
color: #000;
pointer-events: none;
font-size: 10px;
button {
position: absolute;
padding: 0;
background-color: transparent;
border: 0;
outline: 0;
cursor: pointer;
color: currentColor;
transform: scale(.9999);
transition: color 0.2s ease,
opacity 0.2s ease,
transform 0.2s ease;
z-index: 2; // above slides
pointer-events: auto;
font-size: inherit;
visibility: hidden;
opacity: 0;
-webkit-appearance: none;
-webkit-tap-highlight-color: rgba( 0, 0, 0, 0 );
}
.controls-arrow:before,
.controls-arrow:after {
content: '';
position: absolute;
top: 0;
left: 0;
width: $controlArrowLength;
height: $controlArrowThickness;
border-radius: $controlArrowThickness*0.5;
background-color: currentColor;
transition: all 0.15s ease, background-color 0.8s ease;
transform-origin: math.div(floor(($controlArrowThickness*0.5)*10), 10) 50%;
will-change: transform;
}
.controls-arrow {
position: relative;
width: $controlArrowSize;
height: $controlArrowSize;
@include controlsArrowTransform( $controlsArrowAngle );
&:hover {
@include controlsArrowTransform( $controlsArrowAngleHover );
}
&:active {
@include controlsArrowTransform( $controlsArrowAngleActive );
}
}
.navigate-left {
right: $controlArrowSize + $controlArrowSpacing*2;
bottom: $controlArrowSpacing + $controlArrowSize*0.5;
transform: translateX( -10px );
&.highlight {
animation: bounce-left 2s 50 both ease-out;
}
}
.navigate-right {
right: 0;
bottom: $controlArrowSpacing + $controlArrowSize*0.5;
transform: translateX( 10px );
.controls-arrow {
transform: rotate( 180deg );
}
&.highlight {
animation: bounce-right 2s 50 both ease-out;
}
}
.navigate-up {
right: $controlArrowSpacing + $controlArrowSize*0.5;
bottom: $controlArrowSpacing*2 + $controlArrowSize;
transform: translateY( -10px );
.controls-arrow {
transform: rotate( 90deg );
}
}
.navigate-down {
right: $controlArrowSpacing + $controlArrowSize*0.5;
bottom: -$controlArrowSpacing;
padding-bottom: $controlArrowSpacing;
transform: translateY( 10px );
.controls-arrow {
transform: rotate( -90deg );
}
&.highlight {
animation: bounce-down 2s 50 both ease-out;
}
}
// Back arrow style: "faded":
// Deemphasize backwards navigation arrows in favor of drawing
// attention to forwards navigation
&[data-controls-back-arrows="faded"] .navigate-up.enabled {
opacity: 0.3;
&:hover {
opacity: 1;
}
}
// Back arrow style: "hidden":
// Never show arrows for backwards navigation
&[data-controls-back-arrows="hidden"] .navigate-up.enabled {
opacity: 0;
visibility: hidden;
}
// Any control button that can be clicked is "enabled"
.enabled {
visibility: visible;
opacity: 0.9;
cursor: pointer;
transform: none;
}
// Any control button that leads to showing or hiding
// a fragment
.enabled.fragmented {
opacity: 0.5;
}
.enabled:hover,
.enabled.fragmented:hover {
opacity: 1;
}
}
.reveal:not(.rtl) .controls {
// Back arrow style: "faded":
// Deemphasize left arrow
&[data-controls-back-arrows="faded"] .navigate-left.enabled {
opacity: 0.3;
&:hover {
opacity: 1;
}
}
// Back arrow style: "hidden":
// Never show left arrow
&[data-controls-back-arrows="hidden"] .navigate-left.enabled {
opacity: 0;
visibility: hidden;
}
}
.reveal.rtl .controls {
// Back arrow style: "faded":
// Deemphasize right arrow in RTL mode
&[data-controls-back-arrows="faded"] .navigate-right.enabled {
opacity: 0.3;
&:hover {
opacity: 1;
}
}
// Back arrow style: "hidden":
// Never show right arrow in RTL mode
&[data-controls-back-arrows="hidden"] .navigate-right.enabled {
opacity: 0;
visibility: hidden;
}
}
.reveal[data-navigation-mode="linear"].has-horizontal-slides .navigate-up,
.reveal[data-navigation-mode="linear"].has-horizontal-slides .navigate-down {
display: none;
}
// Adjust the layout when there are no vertical slides
.reveal[data-navigation-mode="linear"].has-horizontal-slides .navigate-left,
.reveal:not(.has-vertical-slides) .controls .navigate-left {
bottom: $controlArrowSpacing;
right: 0.5em + $controlArrowSpacing + $controlArrowSize;
}
.reveal[data-navigation-mode="linear"].has-horizontal-slides .navigate-right,
.reveal:not(.has-vertical-slides) .controls .navigate-right {
bottom: $controlArrowSpacing;
right: 0.5em;
}
// Adjust the layout when there are no horizontal slides
.reveal:not(.has-horizontal-slides) .controls .navigate-up {
right: $controlArrowSpacing;
bottom: $controlArrowSpacing + $controlArrowSize;
}
.reveal:not(.has-horizontal-slides) .controls .navigate-down {
right: $controlArrowSpacing;
bottom: 0.5em;
}
// Invert arrows based on background color
.reveal.has-dark-background .controls {
color: #fff;
}
.reveal.has-light-background .controls {
color: #000;
}
// Disable active states on touch devices
.reveal.no-hover .controls .controls-arrow:hover,
.reveal.no-hover .controls .controls-arrow:active {
@include controlsArrowTransform( $controlsArrowAngle );
}
// Edge aligned controls layout
@media screen and (min-width: 500px) {
$spacing: 0.8em;
.reveal .controls[data-controls-layout="edges"] {
& {
top: 0;
right: 0;
bottom: 0;
left: 0;
}
.navigate-left,
.navigate-right,
.navigate-up,
.navigate-down {
bottom: auto;
right: auto;
}
.navigate-left {
top: 50%;
left: $spacing;
margin-top: -$controlArrowSize*0.5;
}
.navigate-right {
top: 50%;
right: $spacing;
margin-top: -$controlArrowSize*0.5;
}
.navigate-up {
top: $spacing;
left: 50%;
margin-left: -$controlArrowSize*0.5;
}
.navigate-down {
bottom: $spacing - $controlArrowSpacing + 0.3em;
left: 50%;
margin-left: -$controlArrowSize*0.5;
}
}
}
/*********************************************
* PROGRESS BAR
*********************************************/
.reveal .progress {
position: absolute;
display: none;
height: 3px;
width: 100%;
bottom: 0;
left: 0;
z-index: 10;
background-color: rgba( 0, 0, 0, 0.2 );
color: #fff;
}
.reveal .progress:after {
content: '';
display: block;
position: absolute;
height: 10px;
width: 100%;
top: -10px;
}
.reveal .progress span {
display: block;
height: 100%;
width: 100%;
background-color: currentColor;
transition: transform 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
transform-origin: 0 0;
transform: scaleX(0);
}
/*********************************************
* SLIDE NUMBER
*********************************************/
.reveal .slide-number {
position: absolute;
display: block;
right: 8px;
bottom: 8px;
z-index: 31;
font-family: Helvetica, sans-serif;
font-size: 12px;
line-height: 1;
color: #fff;
background-color: rgba( 0, 0, 0, 0.4 );
padding: 5px;
}
.reveal .slide-number a {
color: currentColor;
}
.reveal .slide-number-delimiter {
margin: 0 3px;
}
/*********************************************
* SLIDES
*********************************************/
.reveal {
position: relative;
width: 100%;
height: 100%;
overflow: hidden;
touch-action: pinch-zoom;
}
// Swiping on an embedded deck should not block page scrolling
.reveal.embedded {
touch-action: pan-y;
}
.reveal .slides {
position: absolute;
width: 100%;
height: 100%;
top: 0;
right: 0;
bottom: 0;
left: 0;
margin: auto;
pointer-events: none;
overflow: visible;
z-index: 1;
text-align: center;
perspective: 600px;
perspective-origin: 50% 40%;
}
.reveal .slides>section {
perspective: 600px;
}
.reveal .slides>section,
.reveal .slides>section>section {
display: none;
position: absolute;
width: 100%;
pointer-events: auto;
z-index: 10;
transform-style: flat;
transition: transform-origin 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
transform 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
visibility 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985),
opacity 800ms cubic-bezier(0.260, 0.860, 0.440, 0.985);
}
/* Global transition speed settings */
.reveal[data-transition-speed="fast"] .slides section {
transition-duration: 400ms;
}
.reveal[data-transition-speed="slow"] .slides section {
transition-duration: 1200ms;
}
/* Slide-specific transition speed overrides */
.reveal .slides section[data-transition-speed="fast"] {
transition-duration: 400ms;
}
.reveal .slides section[data-transition-speed="slow"] {
transition-duration: 1200ms;
}
.reveal .slides>section.stack {
padding-top: 0;
padding-bottom: 0;
pointer-events: none;
height: 100%;
}
.reveal .slides>section.present,
.reveal .slides>section>section.present {
display: block;
z-index: 11;
opacity: 1;
}
.reveal .slides>section:empty,
.reveal .slides>section>section:empty,
.reveal .slides>section[data-background-interactive],
.reveal .slides>section>section[data-background-interactive] {
pointer-events: none;
}
.reveal.center,
.reveal.center .slides,
.reveal.center .slides section {
min-height: 0 !important;
}
/* Don't allow interaction with invisible slides */
.reveal .slides>section:not(.present),
.reveal .slides>section>section:not(.present) {
pointer-events: none;
}
.reveal.overview .slides>section,
.reveal.overview .slides>section>section {
pointer-events: auto;
}
.reveal .slides>section.past,
.reveal .slides>section.future,
.reveal .slides>section.past>section,
.reveal .slides>section.future>section,
.reveal .slides>section>section.past,
.reveal .slides>section>section.future {
opacity: 0;
}
/*********************************************
* Mixins for readability of transitions
*********************************************/
@mixin transition-global($style) {
.reveal .slides section[data-transition=#{$style}],
.reveal.#{$style} .slides section:not([data-transition]) {
@content;
}
}
@mixin transition-stack($style) {
.reveal .slides section[data-transition=#{$style}].stack,
.reveal.#{$style} .slides section.stack {
@content;
}
}
@mixin transition-horizontal-past($style) {
.reveal .slides>section[data-transition=#{$style}].past,
.reveal .slides>section[data-transition~=#{$style}-out].past,
.reveal.#{$style} .slides>section:not([data-transition]).past {
@content;
}
}
@mixin transition-horizontal-future($style) {
.reveal .slides>section[data-transition=#{$style}].future,
.reveal .slides>section[data-transition~=#{$style}-in].future,
.reveal.#{$style} .slides>section:not([data-transition]).future {
@content;
}
}
@mixin transition-vertical-past($style) {
.reveal .slides>section>section[data-transition=#{$style}].past,
.reveal .slides>section>section[data-transition~=#{$style}-out].past,
.reveal.#{$style} .slides>section>section:not([data-transition]).past {
@content;
}
}
@mixin transition-vertical-future($style) {
.reveal .slides>section>section[data-transition=#{$style}].future,
.reveal .slides>section>section[data-transition~=#{$style}-in].future,
.reveal.#{$style} .slides>section>section:not([data-transition]).future {
@content;
}
}
/*********************************************
* SLIDE TRANSITION
* Aliased 'linear' for backwards compatibility
*********************************************/
@each $stylename in slide, linear {
@include transition-horizontal-past(#{$stylename}) {
transform: translate(-150%, 0);
}
@include transition-horizontal-future(#{$stylename}) {
transform: translate(150%, 0);
}
@include transition-vertical-past(#{$stylename}) {
transform: translate(0, -150%);
}
@include transition-vertical-future(#{$stylename}) {
transform: translate(0, 150%);
}
}
/*********************************************
* CONVEX TRANSITION
* Aliased 'default' for backwards compatibility
*********************************************/
@each $stylename in default, convex {
@include transition-stack(#{$stylename}) {
transform-style: preserve-3d;
}
@include transition-horizontal-past(#{$stylename}) {
transform: translate3d(-100%, 0, 0) rotateY(-90deg) translate3d(-100%, 0, 0);
}
@include transition-horizontal-future(#{$stylename}) {
transform: translate3d(100%, 0, 0) rotateY(90deg) translate3d(100%, 0, 0);
}
@include transition-vertical-past(#{$stylename}) {
transform: translate3d(0, -300px, 0) rotateX(70deg) translate3d(0, -300px, 0);
}
@include transition-vertical-future(#{$stylename}) {
transform: translate3d(0, 300px, 0) rotateX(-70deg) translate3d(0, 300px, 0);
}
}
/*********************************************
* CONCAVE TRANSITION
*********************************************/
@include transition-stack(concave) {
transform-style: preserve-3d;
}
@include transition-horizontal-past(concave) {
transform: translate3d(-100%, 0, 0) rotateY(90deg) translate3d(-100%, 0, 0);
}
@include transition-horizontal-future(concave) {
transform: translate3d(100%, 0, 0) rotateY(-90deg) translate3d(100%, 0, 0);
}
@include transition-vertical-past(concave) {
transform: translate3d(0, -80%, 0) rotateX(-70deg) translate3d(0, -80%, 0);
}
@include transition-vertical-future(concave) {
transform: translate3d(0, 80%, 0) rotateX(70deg) translate3d(0, 80%, 0);
}
/*********************************************
* ZOOM TRANSITION
*********************************************/
@include transition-global(zoom) {
transition-timing-function: ease;
}
@include transition-horizontal-past(zoom) {
visibility: hidden;
transform: scale(16);
}
@include transition-horizontal-future(zoom) {
visibility: hidden;
transform: scale(0.2);
}
@include transition-vertical-past(zoom) {
transform: scale(16);
}
@include transition-vertical-future(zoom) {
transform: scale(0.2);
}
/*********************************************
* CUBE TRANSITION
*
* WARNING:
* this is deprecated and will be removed in a
* future version.
*********************************************/
.reveal.cube .slides {
perspective: 1300px;
}
.reveal.cube .slides section {
padding: 30px;
min-height: 700px;
backface-visibility: hidden;
box-sizing: border-box;
transform-style: preserve-3d;
}
.reveal.center.cube .slides section {
min-height: 0;
}
.reveal.cube .slides section:not(.stack):before {
content: '';
position: absolute;
display: block;
width: 100%;
height: 100%;
left: 0;
top: 0;
background: rgba(0,0,0,0.1);
border-radius: 4px;
transform: translateZ( -20px );
}
.reveal.cube .slides section:not(.stack):after {
content: '';
position: absolute;
display: block;
width: 90%;
height: 30px;
left: 5%;
bottom: 0;
background: none;
z-index: 1;
border-radius: 4px;
box-shadow: 0px 95px 25px rgba(0,0,0,0.2);
transform: translateZ(-90px) rotateX( 65deg );
}
.reveal.cube .slides>section.stack {
padding: 0;
background: none;
}
.reveal.cube .slides>section.past {
transform-origin: 100% 0%;
transform: translate3d(-100%, 0, 0) rotateY(-90deg);
}
.reveal.cube .slides>section.future {
transform-origin: 0% 0%;
transform: translate3d(100%, 0, 0) rotateY(90deg);
}
.reveal.cube .slides>section>section.past {
transform-origin: 0% 100%;
transform: translate3d(0, -100%, 0) rotateX(90deg);
}
.reveal.cube .slides>section>section.future {
transform-origin: 0% 0%;
transform: translate3d(0, 100%, 0) rotateX(-90deg);
}
/*********************************************
* PAGE TRANSITION
*
* WARNING:
* this is deprecated and will be removed in a
* future version.
*********************************************/
.reveal.page .slides {
perspective-origin: 0% 50%;
perspective: 3000px;
}
.reveal.page .slides section {
padding: 30px;
min-height: 700px;
box-sizing: border-box;
transform-style: preserve-3d;
}
.reveal.page .slides section.past {
z-index: 12;
}
.reveal.page .slides section:not(.stack):before {
content: '';
position: absolute;
display: block;
width: 100%;
height: 100%;
left: 0;
top: 0;
background: rgba(0,0,0,0.1);
transform: translateZ( -20px );
}
.reveal.page .slides section:not(.stack):after {
content: '';
position: absolute;
display: block;
width: 90%;
height: 30px;
left: 5%;
bottom: 0;
background: none;
z-index: 1;
border-radius: 4px;
box-shadow: 0px 95px 25px rgba(0,0,0,0.2);
-webkit-transform: translateZ(-90px) rotateX( 65deg );
}
.reveal.page .slides>section.stack {
padding: 0;
background: none;
}
.reveal.page .slides>section.past {