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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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Adding Classes

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About the <head>

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Insecure Resource

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CSS

About CSS Preprocessors

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-.

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

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JavaScript

About JavaScript Preprocessors

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

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Babel includes JSX processing.

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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.

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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.

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HTML 

              
                <!--<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
	 width="669.109px" height="1167.969px" viewBox="0 0 669.109 1167.969" enable-background="new 0 0 669.109 1167.969"
	 xml:space="preserve">
<polyline fill="none" id="line1" stroke="#1E1E1E" stroke-width="3" stroke-miterlimit="10" points="585.205,189.985 585.205,189.985 
	585.205,183.985 585.205,176.985 481.205,174.985 78.904,175.487 78.904,264.424 78.904,445.985 78.904,773.985 590.205,773.985 
	585.205,189.985 "/>
</svg>-->
<div id="dot"></div>
<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="-100px" y="-200px"
	 width="100%" height="1102px">
<polyline fill="none" id="line1" stroke="#1E1E1E" stroke-width="3" stroke-miterlimit="10" points="431.765,160.979 431.765,160.979 
	431.765,158.765 431.765,156.182 391.43,155.445 235.403,155.63 235.403,188.443 235.403,255.43 235.403,376.445 433.705,376.445 
	431.765,160.979 "/>
<polyline fill="none" id="line2" stroke="#1E1E1E" stroke-width="3" stroke-miterlimit="10" points="432.602,253.965 606.054,255.43 
	621.054,255.43 654.054,255.485 687.054,256.485 788.054,255.485 859.054,253.965 859.054,253.965 884.054,253.965 926.054,253.965 
	951.054,253.965 "/>
<polyline fill="none" id="line3" stroke="#1E1E1E" stroke-width="3" stroke-miterlimit="10" points="951.167,255.916 954.526,366.385 
	959.55,367.226 959.55,367.226 993.396,366.3 1149.417,364.778 1149.135,331.967 1148.56,264.981 1147.523,143.971 949.229,145.671 
	951.167,255.916 "/>
</svg>
!

CSS 

              
                #Layer_1 polyline {
  visibility: hidden;
}

#Layer_1 {
  width: 100%;
  display:block;
  position: absolute;
  top: -220px;
  left: -265px;
  min-width: 1200px;
}

#dot {
  border-radius: 100%;
  width: 20px;
  height: 20px;
  background-color: red;
}
!

JS 

              
                $(document).ready(function(){
  gsap.registerPlugin(MotionPathPlugin);
  TweenLite.set("svg>polyline", {visibility:"visible"});
  TweenLite.set("svg",{scale:0.7});
  var tm = new TimelineMax({});
  
  tm.add(TweenLite.fromTo("#line1",2, {drawSVG:"0%"}, {drawSVG:"100%", onComplete:function(){
    TweenLite.to("#line1", 0.5,{fill:"#fec72c"});
  }}));
  tm.add(TweenLite.fromTo("#line2",2, {drawSVG:"0%"}, {drawSVG:"100%"}));
  tm.add(TweenLite.fromTo("#line3",2, {drawSVG:" 0%"}, {drawSVG:"100%", onComplete: function(){
    TweenLite.to("#line3", 0.5,{fill:"#ff3333"});
  }}));
  
  gsap.to("#dot", {
  duration: 2, 
  ease: "linear",
  motionPath:{
    path: "#line2",
    align: "#line2",
    autoRotate: true,
    alignOrigin: [0.5, 0.5]
  }
});
  
  tm.play();
  
 /* TweenLite.fromTo("#line1",2, {drawSVG:"0% 0%"}, {drawSVG:"0% 100%", onComplete: function(){
    TweenLite.to("#line1", 0.5,{fill:"#fec72c"});
    TweenLite.set("svg>#line2", {visibility:"visible"});
     TweenLite.fromTo("#line2",2, {drawSVG:"0% 0%"}, {drawSVG:"0% 100%", onComplete: function(){
       TweenLite.set("svg>#line3", {visibility:"visible"});
        TweenLite.fromTo("#line3",2, {drawSVG:"0% 0%"}, {drawSVG:"0% 100%", onComplete: function(){
      TweenLite.to("#line3", 0.5,{fill:"#ff3333"});
    }});
    }});
    
  }});*/
  
  
  //TweenLite.fromTo("#path3", 1, {drawSVG:"0 0%"}, {drawSVG:"100% 100%"});
});
!
999px

Console