Code for the littler Buttons the Computer used in the Turing Machine portion of the book.
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buttons-computer/sass/_parallax.scss

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3.2 KiB

// Parallax
$parallax-deg: 3deg !default;
$parallax-offset: 4.5px !default;
$parallax-offset-z: 50px !default;
$parallax-perspective: 1000px !default;
$parallax-scale: .95 !default;
$parallax-fade-color: rgba(255, 255, 255, .35) !default;
// Mixin: Parallax direction
@mixin parallax-dir() {
height: 50%;
outline: none;
position: absolute;
width: 50%;
z-index: $zindex-1;
}
.parallax {
display: block;
height: auto;
position: relative;
width: auto;
.parallax-content {
@include shadow-variant(1rem);
height: auto;
transform: perspective($parallax-perspective);
transform-style: preserve-3d;
transition: all .4s ease;
width: 100%;
&::before {
content: "";
display: block;
height: 100%;
left: 0;
position: absolute;
top: 0;
width: 100%;
}
}
.parallax-front {
align-items: center;
color: $light-color;
display: flex;
height: 100%;
justify-content: center;
left: 0;
position: absolute;
text-align: center;
text-shadow: 0 0 20px rgba($dark-color, .75);
top: 0;
transform: translateZ($parallax-offset-z) scale($parallax-scale);
transition: transform .4s;
width: 100%;
z-index: $zindex-0;
}
.parallax-top-left {
@include parallax-dir();
left: 0;
top: 0;
&:focus ~ .parallax-content,
&:hover ~ .parallax-content {
transform: perspective($parallax-perspective) rotateX($parallax-deg) rotateY(-$parallax-deg);
&::before {
background: linear-gradient(135deg, $parallax-fade-color 0%, transparent 50%);
}
.parallax-front {
transform: translate3d($parallax-offset, $parallax-offset, $parallax-offset-z) scale($parallax-scale);
}
}
}
.parallax-top-right {
@include parallax-dir();
right: 0;
top: 0;
&:focus ~ .parallax-content,
&:hover ~ .parallax-content {
transform: perspective($parallax-perspective) rotateX($parallax-deg) rotateY($parallax-deg);
&::before {
background: linear-gradient(-135deg, $parallax-fade-color 0%, transparent 50%);
}
.parallax-front {
transform: translate3d(-$parallax-offset, $parallax-offset, $parallax-offset-z) scale($parallax-scale);
}
}
}
.parallax-bottom-left {
@include parallax-dir();
bottom: 0;
left: 0;
&:focus ~ .parallax-content,
&:hover ~ .parallax-content {
transform: perspective($parallax-perspective) rotateX(-$parallax-deg) rotateY(-$parallax-deg);
&::before {
background: linear-gradient(45deg, $parallax-fade-color 0%, transparent 50%);
}
.parallax-front {
transform: translate3d($parallax-offset, -$parallax-offset, $parallax-offset-z) scale($parallax-scale);
}
}
}
.parallax-bottom-right {
@include parallax-dir();
bottom: 0;
right: 0;
&:focus ~ .parallax-content,
&:hover ~ .parallax-content {
transform: perspective($parallax-perspective) rotateX(-$parallax-deg) rotateY($parallax-deg);
&::before {
background: linear-gradient(-45deg, $parallax-fade-color 0%, transparent 50%);
}
.parallax-front {
transform: translate3d(-$parallax-offset, -$parallax-offset, $parallax-offset-z) scale($parallax-scale);
}
}
}
}