Skip to content

Instantly share code, notes, and snippets.

@Bappyllcg

Bappyllcg/index.html

Created November 11, 2018 15:16
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save Bappyllcg/f21a4d4ec98f914cb9d52d77988f9fc6 to your computer and use it in GitHub Desktop.
Save Bappyllcg/f21a4d4ec98f914cb9d52d77988f9fc6 to your computer and use it in GitHub Desktop.
Download ZIP
Pure CSS Stack
Raw
index.html
<form class="screen" novalidate>
<input id="start" type="checkbox" tabindex="-1">
<input id="end" type="checkbox" tabindex="-1">
<input id="last" type="checkbox" tabindex="-1">
<div class="sky">
<div></div>
<div></div>
</div>
<div class="base">
<input type="checkbox" tabindex="-1" required>
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<input type="checkbox" tabindex="-1">
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<input type="checkbox" tabindex="-1">
<div class="container horizontal">
<div class="block floating horizontal"></div>
<div class="block horizontal">
<label class="last" for="last" tabindex="-1"></label>
<div class="container vertical">
<div class="block floating vertical"></div>
<div class="block vertical">
<label class="end horizontal" for="end"></label>
<label class="end vertical" for="end"></label>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="points"></div>
<label class="start" for="start" tabindex="-1">
PURE CSS<br>STACK
</label>
<button type="reset" tabindex="-1">
CLICK OR TAP<br>
TO RESTART
</button>
</form>
Raw
pure-css-stack.markdown

Pure CSS Stack

This is a CSS only game heavily inspired by Ketchapp's Stack (Android: https://play.google.com/store/apps/details?id=com.ketchapp.stack, iOS: https://itunes.apple.com/hu/app/stack/id1080487957). The goal is to build the highest stack possible, with the maximum of 50. I had to use suboptimal solutions for the animations to make it work without JavaScript, so expect high CPU loads. Works best in Chrome, it's playable in Safari, and janky in Firefox.

A Pen by Ben Szabo on CodePen.

License.

Raw
script.js
// ¯\_(ツ)_/¯
Raw
style.css
/* Layout */
body {
margin: 0;
background-color: black;
counter-reset: points;
}
.screen {
position: relative;
margin: 0 auto;
max-width: 100vw;
width: 75vh;
height: 100vh;
overflow: hidden;
}
/* Sky */
.sky {
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
pointer-events: none;
}
.sky > div {
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
}
.sky > div::before {
content: "";
position: absolute;
left: 0;
right: 0;
top: 0;
display: block;
height: 1000vh;
}
.sky > div + div {
animation: opacity 30s linear infinite forwards paused;
}
/* All gradients except last are from https://uigradients.com/ */
.sky > div::before {
background: linear-gradient(
#f12711,
#f5af19 10%,
#91eae4 11%,
#86a8e7,
#7f7fd5 21%,
#f64f59 22%,
#c471ed,
#12c2e9 32%,
#f7797d 33%,
#fbd786,
#c6ffdd 43%,
#8a2387 44%,
#e94057,
#f27121 54%,
#3a1c71 55%,
#d76d77,
#fdbb2d 65%,
#22c1c3 66%,
#fdbb2d 76%,
#1a2a6c 77%,
#b21f1f,
#fdbb2d 87%
);
animation: sky 240s steps(8, end) infinite forwards paused;
}
.sky > div + div::before {
background: linear-gradient(
#ff0080,
#ff8c00,
#40e0d0 10%,
#1d2671 11%,
#c33764 21%,
#78ffd6 22%,
#a8ff78 32%,
#4b1248 33%,
#f0c27b 43%,
#2980b9 44%,
#6dd5fa,
#fff 54%,
#03001e 55%,
#7303c0,
#ec38bc,
#fdeff9 65%,
#56ccf2 66%,
#2f80ed 76%,
#0c0510 77%,
#160b3e,
#5f4282,
#cecc99 87%
);
animation: sky 240s steps(8, end) -15s infinite forwards paused;
}
/* Inputs and Last Label */
input,
.last {
z-index: 1;
position: absolute;
display: none;
width: 300vh;
height: 300vh;
opacity: 0;
cursor: pointer;
pointer-events: auto;
transform: translate(-150vh, -150vh);
-webkit-touch-callout: none;
-webkit-tap-highlight-color: transparent;
}
#last {
display: initial;
pointer-events: none;
}
input:checked,
#last:checked {
display: none !important;
}
/* Base */
.base {
position: relative;
left: calc(50% - 15vh);
top: 50vh;
width: 30vh;
height: 30vh;
background-color: red;
pointer-events: none;
transform: rotateX(45deg) rotateZ(45deg);
transform-style: preserve-3d;
transition: transform 0.5s ease-in-out;
}
/* Base Sides */
.base::before,
.base::after {
content: "";
z-index: -1;
position: absolute;
display: block;
}
.base::before {
right: 0;
width: 50vh;
height: 100%;
background: linear-gradient(to left, #d00, rgba(221, 0, 0, 0));
transform: rotateY(-90deg);
transform-origin: right;
}
.base::after {
bottom: 0;
width: 100%;
height: 50vh;
background: linear-gradient(to top, #e00, rgba(238, 0, 0, 0));
transform: rotateX(90deg);
transform-origin: bottom;
}
/* Containers */
.container {
position: absolute;
display: flex;
transform-style: preserve-3d;
}
.container.horizontal {
left: -45vh;
flex-direction: row;
width: calc(90vh + 100%);
height: 100%;
}
.container.vertical {
top: -45vh;
flex-direction: column;
width: 100%;
height: calc(90vh + 100%);
}
/* Spacers */
.container::before,
.container::after {
content: "";
}
.container.horizontal::before,
.container.horizontal::after {
max-width: calc(100% - 45vh);
min-width: 45vh;
height: 100%;
}
.container.vertical::before,
.container.vertical::after {
width: 100%;
max-height: calc(100% - 45vh);
min-height: 45vh;
}
/* Blocks */
.block {
position: relative;
visibility: hidden;
flex-grow: 1;
background-color: currentColor;
transform: translateZ(6vh);
transform-style: preserve-3d;
}
.block.horizontal {
height: 100%;
}
.block.vertical {
width: 100%;
}
.block.floating {
position: absolute;
display: none;
visibility: visible;
}
.block.floating.horizontal {
width: calc(100% - 90vh);
animation: left 2s linear alternate infinite both;
}
.block.floating.vertical {
height: calc(100% - 90vh);
animation: top 2s linear alternate infinite both;
}
/* Block Sides */
.block::before,
.block::after {
content: "";
z-index: -1;
position: absolute;
display: block;
background-color: currentColor;
}
.block::before {
right: 0;
width: 6vh;
height: 100%;
box-shadow: inset -6vh 0 rgba(0, 0, 0, 0.2);
transform: rotateY(-90deg);
transform-origin: right;
}
.block::after {
bottom: 0;
width: 100%;
height: 6vh;
box-shadow: inset 0 -6vh rgba(0, 0, 0, 0.1);
transform: rotateX(90deg);
transform-origin: bottom;
}
/* End Labels */
.end {
position: absolute;
left: -200vh;
top: -300vh;
visibility: visible;
max-width: 400vh;
max-height: 600vh;
pointer-events: auto;
cursor: pointer;
transform: rotateZ(-45deg) rotateX(-45deg) translateZ(100vh);
-webkit-touch-callout: none;
-webkit-tap-highlight-color: transparent;
}
.end.horizontal {
width: calc(400vh - 100000%);
height: 600vh;
}
.end.vertical {
width: 400vh;
height: calc(600vh - 100000%);
}
/* Points */
.points {
position: absolute;
left: 0;
right: 0;
top: 0;
display: none;
text-align: center;
color: white;
font-family: "Helvetica", "Roboto", "Segoe UI", "Arial", sans-serif;
font-size: 9vh;
font-weight: lighter;
pointer-events: none;
}
.points::before {
content: "YOU'VE REACHED THE TOP!";
display: block;
margin: 4vh auto;
font-size: 4vh;
opacity: 0;
transition: opacity 0.25s;
}
.points::after {
content: counter(points);
display: block;
}
/* Start Label */
.start {
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
padding: 15vh 0;
text-align: center;
color: transparent;
text-shadow: 0 0 0 white;
font-family: "Helvetica", "Roboto", "Segoe UI", "Arial", sans-serif;
font-size: 9vh;
font-weight: lighter;
cursor: pointer;
transition: opacity 0.25s;
animation: start 0.75s linear;
-webkit-user-select: none;
-moz-user-select: none;
user-select: none;
-webkit-touch-callout: none;
-webkit-tap-highlight-color: transparent;
}
.start::before {
content: "";
position: absolute;
left: calc(50% - 3vh);
top: 59.5vh;
display: block;
border-top: 5vh solid transparent;
border-bottom: 5vh solid transparent;
border-left: 8.5vh solid white;
}
.start::after {
content: "";
position: absolute;
left: calc(50% - 10vh);
top: 54.5vh;
display: block;
box-sizing: border-box;
border: solid 2vh white;
border-radius: 50%;
width: 20vh;
height: 20vh;
}
/* Restart Button */
button {
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
border: none;
padding-top: 80vh;
width: 100%;
color: white;
background: transparent;
opacity: 0;
pointer-events: none;
font-family: "Helvetica", "Roboto", "Segoe UI", "Arial", sans-serif;
font-size: 4vh;
font-weight: lighter;
cursor: pointer;
transition: opacity 0.25s;
-webkit-touch-callout: none;
-webkit-tap-highlight-color: transparent;
}
/* Keyframes */
@keyframes opacity {
0% {
opacity: 1;
}
25% {
opacity: 1;
}
50% {
opacity: 0;
}
75% {
opacity: 0;
}
100% {
opacity: 1;
}
}
@keyframes sky {
from {
transform: none;
}
to {
transform: translateY(-880vh);
}
}
@keyframes width {
from {
width: 0;
}
to {
width: 90vh;
}
}
@keyframes height {
from {
height: 0;
}
to {
height: 90vh;
}
}
@keyframes left {
from {
left: 0;
}
to {
left: 90vh;
}
}
@keyframes top {
from {
top: 0;
}
to {
top: 90vh;
}
}
@keyframes color {
0% {
color: #f00;
}
19% {
color: #ff0;
}
31% {
color: #0f0;
}
43% {
color: #0ff;
}
62% {
color: #00f;
}
81% {
color: #f0f;
}
100% {
color: #f00;
}
}
@keyframes start {
from {
text-shadow: 0 0 1vh white, 2vh -2vh 1vh white, 2vh 2vh 1vh white,
-2vh 2vh 1vh white, -2vh -2vh 1vh white;
opacity: 0;
}
to {
text-shadow: 0 0 0 white;
opacity: 1;
}
}
/* Sky: start changing */
#start:checked ~ .sky > div + div,
#start:checked ~ .sky > div::before {
animation-play-state: running;
}
/* Sky: stop changing */
#end:checked ~ .sky > div + div,
#end:checked ~ .sky > div::before,
#last:checked ~ .sky > div + div,
#last:checked ~ .sky > div::before {
animation-play-state: paused;
}
/* Base: start movement */
#start:checked ~ .base {
transform: translateY(200vh) rotateX(45deg) rotateZ(45deg);
transition-duration: 60s;
transition-timing-function: linear;
}
/* Base: stop movement */
#end:checked ~ .base,
#last:checked ~ .base {
transform: translateY(25vh) rotateX(45deg) rotateZ(45deg)
scale3d(0.3, 0.3, 0.3);
transition-duration: 1s;
transition-timing-function: ease-in-out;
}
/* Inputs and Last Label: display current */
#start:checked ~ .base > input,
input:checked + .container > .block > input,
input:checked + .container > .block > .last {
display: block;
}
/* Containers: start color rotation */
#start:checked ~ .base .container {
animation: color 60s linear alternate infinite both;
}
/* Containers: stop color rotation of current */
#start:checked ~ .base > .container,
input:checked + .container > .block > .container {
animation-play-state: paused !important;
}
/* Spacers: start sizing of current */
#start:checked ~ .base > .container.horizontal::before,
input:checked + .container > .block > .container.horizontal::before {
animation: width 2s linear infinite alternate both running;
}
#start:checked ~ .base > .container.horizontal::after,
input:checked + .container > .block > .container.horizontal::after {
animation: width 2s linear infinite alternate-reverse both running;
}
#start:checked ~ .base > .container.vertical::before,
input:checked + .container > .block > .container.vertical::before {
animation: height 2s linear infinite alternate both running;
}
#start:checked ~ .base > .container.vertical::after,
input:checked + .container > .block > .container.vertical::after {
animation: height 2s linear infinite alternate-reverse both running;
}
/* Spacers: stop sizing of current */
#end:active ~ .base .container::before,
#end:active ~ .base .container::after,
#end:checked ~ .base .container::before,
#end:checked ~ .base .container::after,
#last:active ~ .base .container::before,
#last:active ~ .base .container::after,
#last:checked ~ .base .container::before,
#last:checked ~ .base .container::after,
input:active + .container::before,
input:active + .container::after,
input:checked + .container::before,
input:checked + .container::after {
animation-play-state: paused !important;
}
/* Floating Blocks: display current */
#start:checked ~ .base > .container > .floating,
input:checked + .container > .block > .container > .floating {
display: block;
}
/* Floating Blocks: stop movement of current */
#end:active ~ .base .floating,
#last:active ~ .base .floating,
input:active + .container > .floating {
animation-play-state: paused;
}
/* Floating Blocks: stop movement of current then fadeout */
#end:checked ~ .base .floating,
#last:checked ~ .base .floating,
input:checked + .container > .floating {
visibility: hidden;
color: transparent;
transition: color 0.5s, background-color 0.5s, visibility 0s 0.5s;
animation-play-state: paused;
}
/* Increment Points */
#last:checked ~ .base .floating,
input:checked + .container > .floating {
counter-increment: points 1;
}
/* Floating Block Sides: stop sizing of current then fadeout */
#end:checked ~ .base .floating::before,
#end:checked ~ .base .floating::after,
#last:checked ~ .base .floating::before,
#last:checked ~ .base .floating::after,
input:checked + .container > .floating::before,
input:checked + .container > .floating::after {
visibility: hidden;
opacity: 0;
transition: opacity 0.5s, visibility 0s 0.5s;
animation-play-state: paused;
}
/* Blocks: show current */
input:checked + .container > .floating + .block,
#last:checked ~ .base .last + .container > .floating + .block {
visibility: visible;
}
/* Points: show only positive */
.screen:valid .points {
display: block;
}
/* Points: top reached */
#last:checked ~ .points::before {
opacity: 1;
}
/* Start Label: hide after started */
#start:checked ~ .start {
pointer-events: none;
opacity: 0;
animation: none;
}
/* Restart Button: show on end */
#end:checked ~ button,
#last:checked ~ button {
pointer-events: auto;
opacity: 1;
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment