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HTML

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Insecure Resource

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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.

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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

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

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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 

              
                <div class="card">
  <div class="content">
    <h2>Final result <span class="pointing-index">☞</span></h2>
    <p>
      Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
    </p>
  </div>
  <div class="diagonal-text">
    <span>Hi, I'm diagonal</span>
  </div>
</div>

<div class="card card-show">
  <div class="content">
    <h2><span class="pointing-index">☞</span> Hover to animate</h2>
    <p>
      Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
    </p>
  </div>
  <div class="diagonal-text">
    <span>Hi, I'm diagonal</span>
  </div>
</div>
!

CSS 

              
                * {
  box-sizing: border-box;
}

body {
  background: #d1d2d3;
  color: #2d2d2d;
  padding: 3rem;
  line-height: 1.5;
}

.pointing-index {
  font-size: 150%;
  position: relative;
  top: 4px;
}

.card {
  position: relative;
  width: 400px;
  background: white;
  margin: 0 auto;
  padding: 2rem 3rem;
  border-radius: 0.5rem;
  overflow: hidden;
  margin-bottom: 4rem;
}

.diagonal-text {
  position: absolute;
  top: 0;
  right: 0;
  display: inline-block;
  transform: translateX(50%) translateY(-50%) rotate(45deg);
  transform-origin: center;
  z-index: 1;
}

.diagonal-text::before {
  content: "";
  display: block;
  height: 0;
  padding-top: 100%;
}

.diagonal-text > span {
  display: inline-block;
  background: #eb8c00;
  padding: 6px 45px;
  transform: translateY(-50%);
  font-size: 18px;
  text-align: center;
  color: white;
  white-space: nowrap;
}

// CSS for animated card

.card-show {
  * {
    transition: all 0.75s;
  }

  .diagonal-text {
    background: rgba(0, 0, 0, 0.36);
    transform: none;

    > span {
      transform: none;
    }
  }

  &:hover {
    overflow: visible;
    animation: 1s overflow 1.75s forwards;

    .diagonal-text {
      background: transparent;
      transform: translateX(50%) translateY(-50%) rotate(45deg);

      > span {
        transform: translateY(-50%);
        transition-delay: 1.12s;
        animation: 0.5s letterspacing 3s alternate;
        animation-iteration-count: 2;
      }
    }
  }
}

@keyframes overflow {
  from {
    overflow: visible;
  }
  to {
    overflow: hidden;
  }
}

@keyframes letterspacing {
  0% {
    letter-spacing: initial;
  }
  50% {
    letter-spacing: 3px;
  }
  100% {
    letter-spacing: initial;
  }
}
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JS
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