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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>

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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.

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Babel includes JSX processing.

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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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HTML 

              
                <!-- Edit --TW to adjust spacing.
Edit --AD to adjust scroll speed. -->
<section>
<!-- Begin Actual Code For Marquee-->
<a href="https://isotropic.co/blog"><div class="marquee marquee--long isotropic-cool-bg" style="--tw: 30.5ch; --ad: 4s;">
	<span>Read our WordPress blog  -</span>
</div>
</a>
<!-- End Actual Code For Marquee-->
<section>
!

CSS 

              
                .marquee {
   margin:0;
   font-size: 8vw;
   overflow: hidden;
  background:#f57c00;
  text-transform:uppercase;
  padding:15px 0;
}

.marquee--long { 
   font-size: 14px; 
}

.marquee span {   
    display: inline-block;
    white-space: nowrap;
    color: white;
    width: var(--tw);
    text-shadow: var(--tw) 0 currentColor, 
                 calc(var(--tw) * 2) 0 currentColor, 
                 calc(var(--tw) * 3) 0 currentColor,
                 calc(var(--tw) * 4) 0 currentColor,
                 calc(var(--tw) * 5) 0 currentColor,
                 calc(var(--tw) * 6) 0 currentColor,
                 calc(var(--tw) * 7) 0 currentColor,
                 calc(var(--tw) * 8) 0 currentColor;
   
    will-change: transform;
    animation: marquee var(--ad) linear infinite;
    animation-play-state: running;
}


@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-100%); }
}

/*  
 * on MacOs: System Preferences > 
 *           Accessibility > 
 *           Display > Reduce motion
 */

@media (prefers-reduced-motion: reduce) {
  .marquee span {
    animation: none;
    text-shadow: none;
    width: auto;
    display: block;
    line-height: 1.5;
    text-align: center;
    white-space: normal;
  }
}

/*Delete this to use a solid color bg*/

.isotropic-cool-bg {
      background-color: #F57C00;
  background-size:cover;
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}
!

JS
!
999px

Console