Pen Settings

HTML

About HTML Preprocessors

HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

Learn more · Versions

Adding Classes

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html> tag. If you want to add classes there that can affect the whole document, this is the place to do it.

About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

!
Insecure Resource

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

Learn more · Versions

CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

Powered by Algolia
About External Resources

You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.

You can also link to another Pen here (use the .css URL Extension) and we'll pull the CSS from that Pen and include it. If it's using a matching preprocessor, use the appropriate URL Extension and we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

Learn more

+ add another resource

JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

Learn more · Versions

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

Powered by Algolia
About External Resources

You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.

If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

Learn more

+ add another resource

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Powered by Algolia
About Packages

Using packages here is powered by esm.sh, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ESM usage.

All packages are different, so refer to their docs for how they work.

If you're using React / ReactDOM, make sure to turn on Babel for the JSX processing.

Behavior

Auto Save

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML 

              
                <body class="">
<input type="button" accesskey="a" id="left">
<input type="button" accesskey="q" id="turnleft">
<input type="button" accesskey="w" id="forwards">
<input type="button" accesskey="s" id="backwards">
<input type="button" accesskey="d" id="right">
<input type="button" accesskey="e" id="turnright">

<input type="radio" name="guard" accesskey="g" id="guard">
<input type="radio" name="boss" accesskey="b" id="boss">

<div class="controls">
  <label tabindex="0" class="button turnleft" for="turnleft">⟲</label>
  <label tabindex="0" class="button turnright" for="turnright">⟳</label>
  <div class="controlsRight">
    <div class="controlsLeft">
      <label tabindex="0" class="button left" for="left">&lt;</label>
      <label tabindex="0" class="button forwards" for="forwards">➤</label>
      <label tabindex="0" class="button backwards" for="backwards">&lt;</label>
      <label tabindex="0" class="button right" for="right">&gt;</label>
    </div>
  </div>
</div>

<div id="tridiv"> 
<!--   Applemail doesn't recognise the clicks so adding labels -->
  <label for="boss" class="Appleboss"></label>
  <label for="guard" class="Appleguard"></label> 
  <div class="gun"></div>
  <div class="safariFix">
  <div class="move rotateL">
    <div class="move rotateR">
      <div class="move walkF">
        <div class="move walkB">
          <div class="move walkL">
            <div class="move walkR">
  <div class="scene">
    <div class="shape cuboid-4 cub-4">
      <div class="face bk">
        <div class="photon-shader"></div>
      </div>
      <div class="face rt">
        <div class="photon-shader flag"></div>
      </div>
      <div class="face bm">
        <div class="photon-shader"></div>
      </div>
      <div class="face tp">
        <div class="photon-shader"></div>
      </div>
    </div>
    <div class="shape cuboid-5 cub-5">
      <div class="face rt">
        <div class="photon-shader"></div>
      </div>
      <div class="face lt">
        <div class="photon-shader"></div>
      </div>
      <div class="face bm">
        <div class="photon-shader"></div>
      </div>
      <div class="face tp">
        <div class="photon-shader"></div>
      </div>
    </div>
    <div class="shape cuboid-6 cub-6">
      <div class="face ft">
        <div class="photon-shader"></div>
      </div>
      <div class="face bk">
        <div class="photon-shader"></div>
      </div>
      <div class="face bm">
        <div class="photon-shader"></div>
      </div>
      <div class="face tp">
        <div class="photon-shader"></div>
      </div>
    </div>
    <div class="shape cuboid-7 cub-7">
      <div class="face ft">
        <div class="photon-shader flag"></div>
      </div>
      <div class="face lt">
        <div class="photon-shader"></div>
      </div>
      <div class="face bm">
        <div class="photon-shader"></div>
      </div>
      <div class="face tp">
        <div class="photon-shader"></div>
      </div>
    </div>
    <div class="shape cuboid-8 cub-8">
      <div class="face bk">
        <div class="photon-shader flag"></div>
      </div>
      <div class="face rt">
        <div class="photon-shader"></div>
      </div>
      <div class="face lt">
        <div class="photon-shader"></div>
      </div>
      <div class="face bm">
        <div class="photon-shader"></div>
      </div>
      <div class="face tp">
        <div class="photon-shader"></div>
      </div>
    </div>
    <label class="guard" for="guard"></label>
    <label class="boss" for="boss"></label>
  </div>
                </div><!--End class="move" -->
            </div><!--End class="move" -->
          </div><!--End class="move" -->             
        </div><!--End class="move" -->
      </div><!--End class="move" -->
  </div><!--End class="move" -->
  </div><!--End class="safariFix" -->
</div>
</body>
!

CSS 

              
                body{
  margin:0;
  background:#000;
  font-size:16px;
  image-rendering: pixelated;
}
body:not(.Singleton){
  font-size:min(1.7vw, 2.3vh);
}

label{
  color:#fff;
}

[type="button"],
[type="radio"]{
  height:0;
  width:0;
  margin:0;
  appearance:none;
  float:left;
  opacity:0;
}

.controls{
  position:absolute;
  z-index: 10;
  top:0;
  left:0;
  height:8em;
  width:8em;
  border-radius:50%;
  background:rgba(0,0,0,0.5);
  user-select: none;
}
.button{
  position:absolute;
  height:2em;
  width:2em;
  line-height:2em;
  text-align:center;
  background:grey;
}
#left:focus ~ .controls .left,
#turnleft:focus ~ .controls .turnleft,
#forwards:focus ~ .controls .forwards,
#backwards:focus ~ .controls .backwards,
#right:focus ~ .controls .right,
#turnright:focus ~ .controls .turnright{
  outline: Highlight auto 2px;
  outline: -webkit-focus-ring-color auto 5px;
}
#left:active ~ .controls .left,
#turnleft:active ~ .controls .turnleft,
#forwards:active ~ .controls .forwards,
#backwards:active ~ .controls .backwards,
#right:active ~ .controls .right,
#turnright:active ~ .controls .turnright{
  background:darkgrey;
}



.button.forwards,
.button.backwards{
  transform:rotate(-90deg);
}
.button.forwards{
  top:0;
  left:3em;
}
.button.backwards{
  bottom:0;
  left:3em;
}
.button.left{
  top:3em;;
  left:0;
}
.button.right{
  top:3em;
  right:0;
}
.button.turnleft{
  top:0em;
  left:0;
}
.button.turnright{
  top:0em;
  right:0;
}


.controlsLeft,
.controlsRight{
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index:-1;
  animation-timing-function: linear;
  animation-duration: 20s;
  animation-play-state: paused;
  animation-iteration-count: 1;
  animation-fill-mode: forwards;
}

.controlsLeft{
  animation-name:controlsLeft;
}
#turnleft:active ~* .controlsLeft{
  animation-play-state: running;
}
@keyframes controlsLeft{
  100%{
    transform:rotate(3600deg);
  }
}

.controlsRight{
  animation-name:controlsRight;
}
#turnright:active ~* .controlsRight{
  animation-play-state: running;
}
@keyframes controlsRight{
  100%{
    transform:rotate(-3600deg);
  }
}


.move{
  transform-style: preserve-3d;
  transition:transform 1s;
}
.scene{
  transform: translateY(18em);
}

.move{
  animation-timing-function: linear;
  animation-duration: 20s;
  animation-play-state: paused;
  animation-iteration-count: 1;
  animation-fill-mode: forwards;
}

.walkF{
  animation-name:forward;
}
#forwards:active ~* .walkF{
  animation-play-state: running;
}
@keyframes forward{
  100%{
    transform:translateZ(280em);
  }
}

.walkB{
  animation-name:backwards;
}
#backwards:active ~* .walkB{
  animation-play-state: running;
}
@keyframes backwards{
  100%{
    transform:translateZ(-280em);
  }
}

.walkL{
  animation-name:walkLeft;
}
#left:active ~* .walkL{
  animation-play-state: running;
}
@keyframes walkLeft{
  100%{
    transform:translateX(280em);
  }
}

.walkR{
  animation-name:walkRight;
}
#right:active ~* .walkR{
  animation-play-state: running;
}
@keyframes walkRight{
  100%{
    transform:translateX(-280em);
  }
}

.rotateR{
  animation-name:right;
}
#turnright:active ~* .rotateR{
  animation-play-state: running;
}
@keyframes right{
  100%{
    transform:rotateY(3600deg);
  }
}

.rotateL{
  animation-name:left;
}
#turnleft:active ~* .rotateL{
  animation-play-state: running;
}
@keyframes left{
  100%{
    transform:rotateY(-3600deg);
  }
}

.rotateL,
.rotateR{
/* This isn't working on safari */
  transform-origin:25em 0em 50em;
}

.rt{
  background:url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/51773/Grey10.bmp) left/auto 100%;
}
.lt,
.ft,
.bk{
  background:url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/51773/Grey9.bmp) left/auto 100%;
}

.bm{
  background:#707070 !important;
}
.tp{
  background:#383838 !important;
}
.transparent{
  background:transparent !important;
}

.gun{
  position:absolute;
  height:15em;
  width:13em;
  left:18em;
  bottom:0;
  z-index:1;
  overflow:hidden;
}
.gun::after{
  content:'';
  position: absolute;
  width:500%;
  height:100%;
  background:url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/51773/wolf-gun.gif)0% 0%/cover repeat-x;
  transition:transform .5s steps(4, end);
  transform: translateX(-80%);
  transition-delay:0s;
}
#tridiv:active .gun::after{
  transform: translateX(-0%);
  transition:none;
  transition-delay:.5s;
}
/* Can shoot through divs */
.shape{
  pointer-events:none;
}
/* But can't shoot through walls */
.face{
  pointer-events:auto;
}

.guard{
  display: block;
  position:relative;
  height: 20em;
  width: 20em;
  overflow:hidden;
  transform: translate3d(65em,30em,10em) rotateY(-90deg);
  clear:both;
  float:left;
}
#guard:checked ~ * .guard{
  pointer-events:none;
}
.guard::after{
  content:'';
  position: absolute;
  width:500%;
  height:100%;
  background-image:url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/51773/guard.gif);
  background-size:cover;
  background-position: 0em -20em;
  animation:guard 1s steps(1, start) infinite;
}
#guard:focus ~ * .guard::before,
#boss:focus ~ * .boss::before{
  content:'';
  position: absolute;
  width:100%;
  height:100%;
  z-index: 1;
  background-image:radial-gradient(closest-side, #d00, #a00 5%, transparent 5%, transparent 15%, #d00 15%, #a00 20%, transparent 20%, transparent 25%, #d00 25%, #a00 30%, transparent 30%)
  }
#guard:checked ~ * .guard::after{
  background-position: 0em 40em;
  animation:guard-dead 1s steps(4, start) 1 forwards;
}
@keyframes guard{
  0%,50%{
    transform:translateX(0);
  }
  75%{
    transform:translateX(-20em);
  }
  100%{
    transform:translateX(-40em);
  }
}
@keyframes guard-dead{
  100%{
    transform:translateX(-80em);
  }
}

.boss{
  display: block;
  position:relative;
  height: 20em;
  width: 20em;
  overflow:hidden;
  transform: translate3d(80em,10em,-30em);
  clear:both;
  float:left;
  animation:boss-walk 8s infinite linear;
}
@keyframes boss-walk{
  0%{transform: translate3d(80em,10em,-30em);}
  20%{transform: translate3d(80em,10em,-20em);}
  50%{transform: translate3d(80em,10em,-20em);}
  75%{transform: translate3d(80em,10em,-30em);}
}
#boss:checked ~ * .boss{
  pointer-events:none;
  animation-play-state:paused;
}
.boss::after{
  content:'';
  position: absolute;
  bottom:0;
  left:0;
  width:400%;
  height:300%;
  background-image:url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/51773/boss.png);
  background-size:cover;
  animation:boss 4s steps(1, start) infinite;
}
#boss:checked ~ * .boss::after{
  animation:boss-dead 1s steps(3, start) 1 forwards;
}
@keyframes boss{
  0%{transform:translateX(0%);}
  6.25%{transform:translateX(-25%);}
  12.5%{transform:translateX(-50%);}
  18.25%{transform:translateX(-75%);}
  25%{transform:translateX(0%);}
  31.25%{transform:translateX(-25%);}
  37.5%{transform:translateX(-50%);}
  43.75%{transform:translateX(-75%);}
  50%{transform:translate(0%,20em);}
  56.25%{transform:translate(-25%,20em);}
  62.5%{transform:translate(-50%,20em);}
  68.75%{transform:translate(-75%,20em);}
  75%{transform:translate(0%,20em);}
  81.25%{transform:translate(-25%,20em);}
  87.5%{transform:translate(-50%,20em);}
  93.75%{transform:translate(-75%,20em);}
}
@keyframes boss-dead{
  0%{transform:translate(0%,40em)}
  100%{transform:translate(-75%,40em)}
}

/* All browsers need these Apple fixes now */
.safariFix{
  transform-style: preserve-3d;
}

 .Appleguard,
 .Appleboss{
  position:absolute;
  display:block;
  top:0;
  left:0;
  right:0;
  bottom:0;
}
 .Appleguard{transform:translateZ(18em);}
 .Appleboss{transform:translateZ(19em);}

 #guard:checked ~ * .Appleguard,
 #boss:checked ~ * .Appleboss{
  display:none;
}

/* Add .Singleton to target Applemail 10 */
.Singleton .rotateL{
  transform-origin:25em 0em 0em;
}
.Singleton .rotateR{
  transform-origin:25em 0em 50em;
} 
.Singleton .safariFix{
  transform: translateZ(50em);
  transform-style: preserve-3d;
}

.Singleton .gun{
  transform:translateX(.5em)translateY(-9em)translateZ(40em)scale(.2);
}










#tridiv {
  perspective: 50em;
  position: relative;
  overflow: hidden;
  margin:0 auto;
  width: 50em;
  height: 37.5em;
  background: transparent;
  font-size: 100%;
  outline:.25em darkred solid;
}
.scene, .shape, .face, .face-wrapper{
  position: absolute;
  transform-style: preserve-3d;
}
.scene {
  width: 80em;
  height: 80em;
  top: 50%;
  left: 50%;
  margin: -40em 0 0 -40em;
}
.shape {
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  transform-origin: 50%;
}
.face, .face-wrapper {
  overflow: hidden;
  transform-origin: 0 0;
  backface-visibility: visible;
  /* hidden by default, prevent blinking and other weird rendering glitchs */
}
.face-wrapper .face {
  left: 100%;
  width: 100%;
  height: 100%
}
.photon-shader {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%
}
.side {
  left: 50%;
}
[class*="cuboid"] .ft, [class*="cuboid"] .bk {
  width: 100%;
  height: 100%;
}
[class*="cuboid"] .bk {
  left: 100%;
}
[class*="cuboid"] .rt {
  transform: rotateY(-90deg) translateX(-50%);
}
[class*="cuboid"] .lt {
  transform: rotateY(90deg) translateX(-50%);
}
[class*="cuboid"] .tp {
  transform: rotateX(90deg) translateY(-50%);
}
[class*="cuboid"] .bm {
  transform: rotateX(-90deg) translateY(-50%);
}
[class*="cuboid"] .lt {
  left: 100%;
}
[class*="cuboid"] .bm {
  top: 100%;
}
/* .cub-4 styles */
.cub-4 {
  transform:translate3D(0em, 0em, 10em) rotateX(0deg) rotateY(0deg) rotateZ(0deg);
  opacity:1;
  width:20em;
  height:20em;
  margin:-10em 0 0 -10em;
}
.cub-4 .ft {
  transform:translateZ(10em);
}
.cub-4 .bk {
  transform:translateZ(-10em) rotateY(180deg);
}
.cub-4 .rt, .cub-4 .lt {
  width:20em;
  height:20em;
}
.cub-4 .tp, .cub-4 .bm {
  width:20em;
  height:20em;
}


/* .cub-5 styles */
.cub-5 {
  transform:translate3D(0em, 0em, 30em) rotateX(0deg) rotateY(0deg) rotateZ(0deg);
  opacity:1;
  width:20em;
  height:20em;
  margin:-10em 0 0 -10em;
}
.cub-5 .ft {
  transform:translateZ(10em);
}
.cub-5 .bk {
  transform:translateZ(-10em) rotateY(180deg);
}
.cub-5 .rt, .cub-5 .lt {
  width:20em;
  height:20em;
}
.cub-5 .tp, .cub-5 .bm {
  width:20em;
  height:20em;
}

.cub-5 .ft {
  width:20em;
  margin-left:0em;
}
.cub-5 .bk {
  width:20em;
  margin-left:0em;
}
.cub-5 .rt, .cub-5 .lt {
  width:20em;
}
.cub-5 .tp, .cub-5 .bm, .cub-5 .tp .photon-shader, .cub-5 .bm .photon-shader {
  border-radius:0em;
}
.cub-5 .side {
  width:0.025em;
}
/* .cub-6 styles */
.cub-6 {
  transform:translate3D(25em, 0em, 10em) rotateX(0deg) rotateY(0deg) rotateZ(0deg);
  opacity:1;
  width:30em;
  height:20em;
  margin:-10em 0 0 -15em;
}
.cub-6 .ft {
  transform:translateZ(10em);
}
.cub-6 .bk {
  transform:translateZ(-10em) rotateY(180deg);
}
.cub-6 .rt, .cub-6 .lt {
  width:20em;
  height:20em;
}
.cub-6 .tp, .cub-6 .bm {
  width:30em;
  height:20em;
}

/* .cub-7 styles */
.cub-7 {
  transform:translate3D(50em, 0em, 10em) rotateX(0deg) rotateY(0deg) rotateZ(0deg);
  opacity:1;
  width:20em;
  height:20em;
  margin:-10em 0 0 -10em;
}
.cub-7 .ft {
  transform:translateZ(10em);
}
.cub-7 .bk {
  transform:translateZ(-10em) rotateY(180deg);
}
.cub-7 .rt, .cub-7 .lt {
  width:20em;
  height:20em;
}
.cub-7 .tp, .cub-7 .bm {
  width:20em;
  height:20em;
}

.cub-7 .ft {
  width:20em;
  margin-left:0em;
}
.cub-7 .bk {
  width:20em;
  margin-left:0em;
}
.cub-7 .rt, .cub-7 .lt {
  width:20em;
}
.cub-7 .tp, .cub-7 .bm, .cub-7 .tp .photon-shader, .cub-7 .bm .photon-shader {
  border-radius:0em;
}

.cub-7 .side {
  width:0.025em;
}
/* .cub-8 styles */
.cub-8 {
  transform:translate3D(50em, 0em, -20em) rotateX(0deg) rotateY(0deg) rotateZ(0deg);
  opacity:1;
  width:20em;
  height:20em;
  margin:-10em 0 0 -10em;
}
.cub-8 .ft {
  transform:translateZ(20em);
}
.cub-8 .bk {
  transform:translateZ(-20em) rotateY(180deg);
}
.cub-8 .rt, .cub-8 .lt {
  width:40em;
  height:20em;
}
.cub-8 .tp, .cub-8 .bm {
  width:20em;
  height:40em;
}
.cub-8 .ft {
  width:20em;
  margin-left:0em;
}
.cub-8 .bk {
  width:20em;
  margin-left:0em;
}
.cub-8 .rt, .cub-8 .lt {
  width:40em;
}
.cub-8 .tp, .cub-8 .bm, .cub-8 .tp .photon-shader, .cub-8 .bm .photon-shader {
  border-radius:0em;
}

.cub-8 .side {
  width:0.025em;
}


@media screen and (max-width:500px){
  body{
    font-size:2vw;
  }
  #tridiv {
    width: 100%;
  }
  .controls{
    font-size:14px;
  }
}
!

JS 

              
                    // I don't use JS 'cos I build things for email

// To move, click and hold the directions in the top left.  Or use access keys a, q, w, s, d, e
// To shoot use the left mouse button or access key b for boss and g for guard.  
// Access keys not currently wokring in Firefox.

// CREDITS
// Any resemblance to people living, dead is purely coincidental

// Initial 3D layout built with http://tridiv.com
// Sprites graphics etc. from https://www.wolfenstein3d.co.uk
// I may have tweaked the image of the boss a little

// Inspired by this incredible project by Keith Clark https://www.keithclark.co.uk/labs/css-fps

// To get it to work in Sarafi add the class="Singleton" to the body tag, this replicates what Applemail is doing.

// play the orriginal here http://3d.wolfenstein.com/game_EU.php
!
999px

Console