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HTML

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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.

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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.

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CSS

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

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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-.

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient. For instance, CoffeeScript can help prevent easy-to-make mistakes and offer a cleaner syntax and Babel can bring ECMAScript 6 features to browsers that only support ECMAScript 5.

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HTML 

              
                <div class="content">
   <div class="lyrics"></div>
</div>

<div class="player">
   <div class="left"></div>
   <div class="right">
      <div class="top">
         <a class="song" href="https://open.spotify.com/track/52LlzTfdulBMiwH4BZy5Sq?si=1c1rwqNYSf6ZaaRbzlstLQ">Let's Go To the Forest</a>
         <a class="artist" href="https://open.spotify.com/artist/6OqhFYFJDnBBHas02HopPT?si=vQaSwY1DRkyhj-eoKZlMrw">Kero Kero Bonito</a>
      </div>
      <div class="bottom">
         <video controls="" _autoplay="" name="media"><source src="https://i.koya.io/Kero%20Kero%20Bonito%20-%20Let's%20Go%20To%20The%20Forest.mp3" type="audio/mpeg"></video>
      </div>
   </div>
</div>
!

CSS 

              
                body {
   font-family: 'Montserrat', sans-serif;
   min-height:100vh;
   max-height:100vh;
   margin:0;
   color:#fff;
   
   display:flex;
   flex-direction:column;
   a {
      color:inherit;
      &:not(:hover) {
         text-decoration:none;
      }
   }

   background: #222222;
   background: -webkit-linear-gradient(to top, #232526, #414345);
   #link-a-me {
      position: absolute;
      bottom:80px;
      right:20px;
      height:60px;
      width:60px;
      background:url(https://i.imgur.com/xoxkq1r.png);
      background-size:cover;
      z-index:1;
      animation: pop-in 120s ease-out;
   }
   .content {
      overflow:hidden;
      flex-grow:1;
      height:calc(100% - 80px);
      .lyrics {
         padding:50vh 0;
         min-height:calc(100vh - 80px);
         width:calc(100% - 40px);
         margin:0 20px;
         text-align:center;
         transition: all .25s;
         position: relative;
         >div {
            position: relative;
            font-size:40px;
            line-height:80px;
            color:#666;
            transition: all .25s;
            &:before {
               content:attr(note);
               position: absolute;
               top:0px;
               left:50%;
               transform:translate(-50%,-50%);
               font-size:18px;
            }
            &.highlighted {
               color:#fff;
               font-size:48px;
            }
         }
      }
   }
   .player {
      z-index:10;
      background: #F9F9F9;
      color:#000;
      min-height:80px;
      max-height:80px;
      display:flex;
      flex-direction:row;
      .left {
         width:80px;
         background-image:url(https://i.scdn.co/image/9ca53beeb365f468b023a8360634f309325b5487);
         background-size:cover;
      }
      .right {
         flex-grow:1;
         display:flex;
         flex-direction:column;
         .top {
            flex-grow:1;
            display:flex;
            flex-direction:column;
            justify-content:center;
            padding-left:10px;
            .song {
               font-size:1.2em;
               font-weight:600;
            }
         }
         .bottom {
            display:flex;
            video { //I was being lazy, RIP if you aren't using chrome for style
               flex-grow:1;
               height:32px;
            }
         }
      }
   }
}

@keyframes pop-in {
   0%, 95%{
      transform:translateY(100%);
   }
   100%{
      transform:translateY(0%);
   }
}
!

JS 

              
                console.clear();
var _data = JSON.parse(`{"lyrics":[{"line":"","time":-1},{"line":"Hey, let's all go into the forest","note":"Verse 1","time":16000},{"line":"Nobody will notice for a while","time":20000},{"line":"There we can visit all the creatures","time":24000},{"line":"Maybe they can teach us facts of life","time":27500},{"line":"","time":32000},{"line":"Or we can travel to the ocean","note":"Verse 2","time":55500},{"line":"Don't forget your lotion","time":59500},{"line":"It's quite hot","time":61500},{"line":"I once met seven lovely crabs","time":64000},{"line":"They said I should go back and join them for tea","time":67500},{"line":"","time":72000},{"line":"Oh wait, the forest got demolished","note":"Verse 3","time":95500},{"line":"When they built the airport years ago","time":99000},{"line":"But we can still go see the ocean","time":103500},{"line":"Cause they put it in a bowl at the mall","time":107500},{"line":"","time":112000}]}`);
var currentLine = "";

function align() {
   var a = $(".highlighted").height();
   var c = $(".content").height();
   var d = $(".highlighted").offset().top - $(".highlighted").parent().offset().top;
   var e = d + (a/2) - (c/2);
   $(".content").animate(
       {scrollTop: e + "px"}, {easing: "swing", duration: 250}
   );
}

var lyricHeight = $(".lyrics").height();
$(window).on("resize", function() {
   if ($(".lyrics").height() != lyricHeight) { //Either width changes so that a line may take up or use less vertical space or the window height changes, 2 in 1
      lyricHeight = $(".lyrics").height();
      align();
   }
});

$(document).ready(function(){
   $("video").on('timeupdate', function(e){
      var time = this.currentTime*1000;
      var past = _data["lyrics"].filter(function (item) {
         return item.time < time;
      });
      if (_data["lyrics"][past.length] != currentLine) {
         currentLine = _data["lyrics"][past.length];
         $(".lyrics div").removeClass("highlighted");
         $(`.lyrics div:nth-child(${past.length})`).addClass("highlighted"); //Text might take up more lines, do before realigning
         align();
      }
   });
});

generate();

function generate() {
   var html = "";
   for(var i = 0; i < _data["lyrics"].length; i++) {
      html += "<div";
      if(i == 0) {
         html+=` class="highlighted"`;
         currentLine = 0;
      }
      if(_data["lyrics"][i]["note"]) {
         html += ` note="${_data["lyrics"][i]["note"]}"`;
      }
      html += ">";
      html += _data["lyrics"][i]["line"] == "" ? "•" : _data["lyrics"][i]["line"];
      html += "</div>"
   }
   $(".lyrics").html(html);
   align();
}
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999px

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