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HTML

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Adding Classes

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About the <head>

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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.

Vendor Prefixing

About Vendor Prefixing

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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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HTML 

              
                <div class="two-column">
  <div>
    <div class="main-content">
      <h1>Container Queries</h1>
      <p>This site shows examples of the same card component used in three different locations: in this section, in the sidebar, and in the full-width section below. Notice on desktop how cards in each section are styled differently; this is the power of container queries. The same component can be used multiple times on the same page and dynamically adjust based on the size of the parent container - NOT the size of the browser window. <a href="https://dev.to/dianale/css-layouts-get-started-with-container-queries-3dnf" target="_blank">Read more about container queries on my blog.</a></p>
    </div>
    <div class="card-wrapper-container">
      <div class="card-wrapper">
        <article class="card">
          <div class="card__text">
            <h2 class="card__title">This is the card title</h2>
            <p class="card__description">Rich in heavy atoms courage of our questions hundreds of thousands rich in heavy atoms gathered by gravity vanquish the impossible.</p>
            <a href="#" class="card__link">Learn More</a>
          </div>
          <img class="card__image" src="https://picsum.photos/550/550" alt="">
        </article>

        <article class="card">
          <div class="card__text">
            <h2 class="card__title">This is the card title</h2>
            <p class="card__description">Rich in heavy atoms courage of our questions hundreds of thousands rich in heavy atoms gathered by gravity vanquish the impossible.</p>
            <a href="#" class="card__link">Learn More</a>
          </div>
          <img class="card__image" src="https://picsum.photos/550/550" alt="">
        </article>

        <article class="card">
          <div class="card__text">
            <h2 class="card__title">This is the card title</h2>
            <p class="card__description">Rich in heavy atoms courage of our questions hundreds of thousands rich in heavy atoms gathered by gravity vanquish the impossible.</p>
            <a href="#" class="card__link">Learn More</a>
          </div>
          <img class="card__image" src="https://picsum.photos/550/550" alt="">
        </article>
      </div>
    </div>
  </div>
  <aside class="sidebar">
    <h2 class="sidebar__h2">Sidebar</h2>
    <div class="card-wrapper-container">
      <div class="card-wrapper">
        <article class="card">
          <div class="card__text">
            <h2 class="card__title">This is the card title</h2>
            <p class="card__description">A billion trillion globular star cluster Rig Veda birth descended from astronomers tendrils of gossamer clouds.</p>
            <a href="#" class="card__link">Learn More</a>
          </div>
          <img class="card__image" src="https://picsum.photos/500/500" alt="">
        </article>

      </div>
    </div>
  </aside>
</div>
<!-- Card Wrapper Container -->
<div class="card-wrapper-container">
  <div class="card-wrapper">
    <article class="card">
      <div class="card__text">
        <h2 class="card__title">This is the card title</h2>
        <p class="card__description">A mote of dust suspended in a sunbeam astonishment shores of the cosmic ocean laws of physics permanence of the stars cosmic ocean.</p>
        <a href="#" class="card__link">Learn More</a>
      </div>
      <img class="card__image" src="https://picsum.photos/600/600" alt="">
    </article>

    <article class="card">
      <div class="card__text">
        <h2 class="card__title">This is the card title</h2>
        <p class="card__description">A mote of dust suspended in a sunbeam astonishment shores of the cosmic ocean laws of physics permanence of the stars cosmic ocean.</p>
        <a href="#" class="card__link">Learn More</a>
      </div>
      <img class="card__image" src="https://picsum.photos/600/600" alt="">
    </article>

    <article class="card">
      <div class="card__text">
        <h2 class="card__title">This is the card title</h2>
        <p class="card__description">A mote of dust suspended in a sunbeam astonishment shores of the cosmic ocean laws of physics permanence of the stars cosmic ocean.</p>
        <a href="#" class="card__link">Learn More</a>
      </div>
      <img class="card__image" src="https://picsum.photos/600/600" alt="">
    </article>
  </div>
</div>
!

CSS 

              
                *,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  width: 100%;
  max-width: 1400px;
  margin: 1rem auto 0;
  padding: 1rem;
  font-family: 'Inter', sans-serif;
}

/* Typography */

h1 {
  margin-bottom: 1rem;
  font-size: 1.2rem;
  font-weight: 700;
}

h2 {
  font-size: 1.1rem;
  font-weight: 700;
}

.sidebar__h2 {
   margin-bottom: 1rem;
}

p {
  line-height: 1.4;
  margin-bottom: 1rem;
}

.text-content {
  padding: 1rem;
}


/* Two-Columm Layout */

.two-column {
  margin-bottom: 1rem;
}

.two-column {
  display: grid;
  gap: 1rem;
}

@media (min-width: 600px) {
  .two-column {
    grid-template-columns: 2fr 1fr;
    gap: 1rem;
  }
}

@media (min-width: 600px) {
  h1 {
    font-size: 1.4rem;
  }
  .sidebar__h2 {
    font-size: 1.2rem;
  }
}

@media (min-width: 1200px) {
  h1 {
    font-size: 2rem;
  }
  .sidebar__h2 {
    font-size: 1.4rem;
  }
}

/* Card Component */

.card-wrapper {
  display: grid;
  gap: 1rem;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem;
  background-color: #f4f3f7;
}

.card__text {
  display: flex;
  flex-direction: column;
}

.card__title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #09070e;
  line-height: 1.2;
}

.card__image {
  object-fit: cover;
  max-width: 100%;
  order: -1;
  aspect-ratio: 3;
}

.card__description {
  margin-top: 0.5rem;
  color: #09070e;
}

.card__link {
  display: block;
  margin-top: 1rem;
  padding: 0.6rem 1rem;
  background-color: #2d0320;
  color: #fff;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.1rem;
  border-radius: 0.5rem;
}

.card__link:hover {
  background-color: #2c2244;
}

/* Container Queries */

.card-wrapper-container {
  container-type: inline-size;
}

@container (min-width: 560px) {
  .card-wrapper {
    grid-template-columns: repeat(2, 1fr);
  }
}

@container (min-width: 768px) {
  .card-wrapper {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .card__title {
    font-size: 1.5rem;
  }
}

@container (min-width: 1200px) {
  .card {
    flex-direction: row;
  }
  
  .card__title {
    font-size: 1.8rem;
  }
  
  .card__image {
    aspect-ratio: 2 / 3;
    max-width: 40%;
  }
  
  .card__link {
    margin-top: auto;
  }
}
!

JS
!
999px

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