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Mouse Cursor as Flashlight! 🖱🔦 using CSS Variables

A Pen By Tommy Hodgins Pro

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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-.

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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

            
              <!-- Any website -->

<header>
  <h1>Hidden Website</h1>
  <nav>
    <a href=#>About</a>
    <a href=#>Blog</a>
    <a href=#>Contact</a>
  </nav>
</header>
<main>
  <section>
    <article>
      <h2>Hidden Headline</h2>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perspiciatis fugit earum voluptas officia, quasi saepe et commodi, dolores cumque quam fuga ullam, itaque ea dignissimos asperiores adipisci ad eveniet repellendus!</p>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perspiciatis fugit earum voluptas officia, quasi saepe et commodi, dolores cumque quam fuga ullam, itaque ea dignissimos asperiores adipisci ad eveniet repellendus!</p>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perspiciatis fugit earum voluptas officia, quasi saepe et commodi, dolores cumque quam fuga ullam, itaque ea dignissimos asperiores adipisci ad eveniet repellendus!</p>
    </article>
    <article>
      <h2>Headline</h2>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perspiciatis fugit earum voluptas officia, quasi saepe et commodi, dolores cumque quam fuga ullam, itaque ea dignissimos asperiores adipisci ad eveniet repellendus!</p>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perspiciatis fugit earum voluptas officia, quasi saepe et commodi, dolores cumque quam fuga ullam, itaque ea dignissimos asperiores adipisci ad eveniet repellendus!</p>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perspiciatis fugit earum voluptas officia, quasi saepe et commodi, dolores cumque quam fuga ullam, itaque ea dignissimos asperiores adipisci ad eveniet repellendus!</p>
    </article>
    <article>
      <h2>Headline</h2>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perspiciatis fugit earum voluptas officia, quasi saepe et commodi, dolores cumque quam fuga ullam, itaque ea dignissimos asperiores adipisci ad eveniet repellendus!</p>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perspiciatis fugit earum voluptas officia, quasi saepe et commodi, dolores cumque quam fuga ullam, itaque ea dignissimos asperiores adipisci ad eveniet repellendus!</p>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perspiciatis fugit earum voluptas officia, quasi saepe et commodi, dolores cumque quam fuga ullam, itaque ea dignissimos asperiores adipisci ad eveniet repellendus!</p>
    </article>
  </section>
  <aside>
    <div class=capsule>
      <h3>Widget Headline</h3>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
    </div>
    <div class=capsule>
      <h3>Widget Headline</h3>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
    </div>
    <div class=capsule>
      <h3>Widget Headline</h3>
      <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
    </div>
  </aside>
</main>
<footer>footer content</footer>
!

CSS

            
              /* Flashlight Overlay */
:root {
  cursor: none;
  --cursorX: 50vw;
  --cursorY: 50vh;
}
:root:before {
  content: '';
  display: block;
  width: 100%;
  height: 100%;
  position: fixed;
  pointer-events: none;
  background: radial-gradient(
    circle 10vmax at var(--cursorX) var(--cursorY),
    rgba(0,0,0,0) 0%,
    rgba(0,0,0,.5) 80%,
    rgba(0,0,0,.95) 100%
  )
}
!

JS

            
              function update(e){
  var x = e.clientX || e.touches[0].clientX
  var y = e.clientY || e.touches[0].clientY

  document.documentElement.style.setProperty('--cursorX', x + 'px')
  document.documentElement.style.setProperty('--cursorY', y + 'px')
}

document.addEventListener('mousemove',update)
document.addEventListener('touchmove',update)
!
999px
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