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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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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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HTML 

              
                <main class="E R">
  <article>
     <h1>One</h1>
      <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/10558/manwithacamera.jpg" alt="test image" />
      <p> Nullam <span>pellentesquenec</span> bibendum hendrerit augue, sed tempus odio sagittis nec. Ut ipsum lorem, scelerisque ac vestibulum et, tincidunt eget urna. Phasellus  urna id elementum. Maecenas a urna metus. Vivamus ac euismod ante. Vivamus ut risus porttitor, porttitor ligula a, maximus risus. Donec maximus vulputate mauris, vel placerat diam interdum.</p>
  </article>

    <article>
     <h1>Two</h1>
      <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/10558/manwithacamera.jpg" alt="test image" />
      <p> Nullam <span>pellentesquenec</span> bibendum hendrerit augue, sed tempus odio sagittis nec. Ut ipsum lorem, scelerisque ac vestibulum et, tincidunt eget urna. Phasellus  urna id elementum. Maecenas a urna metus. Vivamus ac euismod ante. Vivamus ut risus porttitor, porttitor ligula a, maximus risus. Donec maximus vulputate mauris, vel placerat diam interdum.</p>
  </article>
  
    <article>
     <h1>Three</h1>
      <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/10558/manwithacamera.jpg" alt="test image" />
      <p> Nullam <span>pellentesquenec</span> bibendum hendrerit augue, sed tempus odio sagittis nec. Ut ipsum lorem, scelerisque ac vestibulum et, tincidunt eget urna. Phasellus  urna id elementum. Maecenas a urna metus. Vivamus ac euismod ante. Vivamus ut risus porttitor, porttitor ligula a, maximus risus. Donec maximus vulputate mauris, vel placerat diam interdum.</p>
  </article>
  
    <article>
     <h1>Four</h1>
      <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/10558/manwithacamera.jpg" alt="test image" />
      <p> Nullam <span>pellentesquenec</span> bibendum hendrerit augue, sed tempus odio sagittis nec. Ut ipsum lorem, scelerisque ac vestibulum et, tincidunt eget urna. Phasellus  urna id elementum. Maecenas a urna metus. Vivamus ac euismod ante. Vivamus ut risus porttitor, porttitor ligula a, maximus risus. Donec maximus vulputate mauris, vel placerat diam interdum.</p>
  </article>
  
  <footer></footer>
  <footer></footer>
  <footer></footer>
  <footer></footer>
</main>
!

CSS 

              
                * { box-sizing: border-box; } 
h1, p, img { border: solid 8px #c429c4; }
main { border: solid 8px #20a0ca; font-family: "Avenir Next"; margin: 2rem; }
article { border: solid 8px #ffb53e; }
h1 { font-family: "Avenir Next Condensed"; font-weight: 200; font-size: 2rem; line-height: 1.1; margin: 0.5em 0 0.44em; }
h2 { text-align:center; margin-top: 0; }
img {
  width: 100%;
  height: 50vh; 
  object-fit: cover;
  object-position: 50% 40%;
}
main {
  display: grid;
  grid-gap: 0 2rem;
}
main.A {
  grid-template-columns: 1fr 1fr 1fr 1fr;
  footer:nth-of-type(1)::after { content: '1fr'; }
  footer:nth-of-type(2)::after { content: '1fr'; }
  footer:nth-of-type(3)::after { content: '1fr'; }
  footer:nth-of-type(4)::after { content: '1fr'; }
}
main.B {
  grid-template-columns: 1fr 2fr 4fr 6fr;
  footer:nth-of-type(1)::after { content: '1fr'; }
  footer:nth-of-type(2)::after { content: '2fr'; }
  footer:nth-of-type(3)::after { content: '4fr'; }
  footer:nth-of-type(4)::after { content: '6fr'; }
  span { background: yellow; }
}

main.C {
  grid-template-columns: 1fr 1fr minmax(250px, 600px) 1fr;
  footer:nth-of-type(1)::after { content: '1fr'; }
  footer:nth-of-type(2)::after { content: '1fr'; }
  footer:nth-of-type(3)::after { content: 'minmax(250px, 600px)'; }
  footer:nth-of-type(4)::after { content: '1fr'; }
}

main.D {
  grid-template-columns: 200px 1fr minmax(300px, 600px) 1fr;
  footer:nth-of-type(1)::after { content: '200px'; }
  footer:nth-of-type(2)::after { content: '1fr'; }
  footer:nth-of-type(3)::after { content: 'minmax(300px, 600px)'; }
  footer:nth-of-type(4)::after { content: '1fr'; }
}

main.E {
  grid-template-columns: 200px auto minmax(300px, 600px) 1fr;
  footer:nth-of-type(1)::after { content: '200px'; }
  footer:nth-of-type(2)::after { content: 'auto'; }
  footer:nth-of-type(3)::after { content: 'minmax(300px, 600px)'; }
  footer:nth-of-type(4)::after { content: '1fr'; }
}


main.R {
  border: none;
  h1, p, img { border: none; }
  article { border: none; }
  footer { ddisplay: none; }
}

footer {
  text-align: center;
  background: black;
  color: yellow;
  padding: 0.2rem;
  font-size: 1.5rem;
  font-weight: bold;
  align-self: center;
}
footer:nth-of-type(1) {
  grid-area: 1 / 1 / 2 / 2;
}
footer:nth-of-type(2) {
  grid-area: 1 / 2 / 2 / 3;
}
footer:nth-of-type(3) {
  grid-area: 1 / 3 / 2 / 4;

}
footer:nth-of-type(4) {
  grid-area: 1 / 4 / 2 / 5;
}
!

JS
!
999px

Console