Remember the justify-content property, which controls the distribution of flex items along the main axis?
There is a very similar property align-content, which controls the alignment of rows of flex items along the cross axis. These properties have practically identical values:
The align-content property overrides any other assigned value of align-items, which controls the alignment of the flex items along the cross axis. This happens when there is only one row of flex items and when there are several such rows.
Previously the specification prescribed a different behavior:
- if there is only one row of flex items, then align-items takes precedence;
- if there are several rows, then align-content takes precedence.
For a fairly long time this was the chosen behavior in all browsers. But in early 2019, the behavior was updated in all modern browsers according to the specification.
You may encounter the old behavior in this assignment if you are completing this chapter in an old browser version.
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The display: flex property, flex item</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/flex-direction">2. The flex-direction property, main axis</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/cross-axis">3. The flexbox cross axis</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/justify-content">4. The justify-content property, alignment along the main axis</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/justify-content-flex-start-flex-end">5. The justify-content property: flex-start | flex-end</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/justify-content-space-between-space-around">6. The justify-content property: space-between | space-around</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/align-items">7. The align-items property, alignment along the cross axis</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/align-items-flex-start-flex-end">8. The align-items property: flex-start | flex-end</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/align-items-baseline">9. The align-items: baseline property</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/align-self">10. The align-self property, or selfish alignment</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/align-self-baseline">11. The align-self: baseline property</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/creating-simple-palette">12. Test: Creating a simple palette</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/flex-wrap">13. The flex-wrap property, overflow of flex items</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/flex-wrap-reverse">14. The flex-wrap property, reverse overflow</a></li><li class="main-nav__course-contents-item main-nav__course-contents-item--current"><a href="/courses/layout/flexbox-1/align-content">15. The align-content property, alignment of flex container lines</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/align-content-stretch">16. The align-content property: stretch and align-items</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/align-content-non-stretch">17. The align-content property: non-stretch and align-items</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/align-content-values">18. The align-content property, remaining values</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/flexbox-order">19. The order property, the sequence number of the flex item</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/creating-more-complicated-palette">20. Test: Creating a more complicated palette</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/flexbox-center-margin-auto">21. Perfect centering by assigning margin: auto to the flex container</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/flexbox-center-properties">22. Perfect centering, flex alignment</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/adaptive-menu">23. The adaptive horizontal menu, part 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/adaptive-menu-2">24. The adaptive horizontal menu, part 2</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/adaptive-menu-3">25. The adaptive horizontal menu, part 3</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/vertical-row-icons">26. The vertical row of icons</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/vertical-row-icons-2">27. The vertical row of icons, part 2</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/vertical-row-icons-3">28. The vertical row of icons, part 3</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/order-elements-css">29. Ordering elements with CSS</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/flexbox-vertical-align">30. Vertically aligning blocks using a flexbox</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/comples-palettes">31. Test: Complex palettes</a></li><li class="main-nav__course-contents-item"><a href="/courses/layout/flexbox-1/summary">32. 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2.334.725-.13.837-1.46.93-2.13h.112c.937.492 1.647 1.33 1.98 2.334-.388.176-.793.31-1.21.4zm18.365-2.864c-1.104-.145-2.215-.232-3.33-.26-.546-.01-1.093.05-1.626.176-1.166.483-2.08 1.425-2.53 2.604l-.158.79 1.795.623c.558.153 1.132.24 1.71.26h.28c3.245-.177 4.137-3.72 4.137-3.72l.084-.353zm-1.264 1.86c-.54 1.394-2.882 1.646-2.966 1.646-.517-.02-1.03-.11-1.525-.26-.186-.085-.633-.26-1.08-.43.374-.966 1.117-1.746 2.065-2.165 0 .68.158 1.953.81 2.083.65.13.613-1.535.566-2.26.934.005 1.865.064 2.79.177-.11.316-.473.65-.66 1.17z" fill="#151841"/><path d="M19.26 39.27c.535 1.362 1.56 2.473 2.874 3.115.534.312 1.204-.07 1.207-.69.002-.285-.15-.55-.397-.695-.918-.46-1.65-1.222-2.073-2.158-.344-.957-1.972-.52-1.61.428zm29.45 3.125c1.083-.59 2.01-1.428 2.706-2.446.3-.556-.112-1.228-.743-1.21-.293.007-.56.17-.698.428-.568.776-1.306 1.412-2.158 1.86-.394.23-.517.742-.27 1.125.263.376.773.482 1.163.242z" fill="#EFA75B" stroke-width="13"/><path d="M16.025 32.436c1.525-1.386 2.427-4.408 2.79-6.835-.084.354 2.613.43 4.138-1.208 1.078-1.125.446-2-.186-3.375-1.71-3.552-4.585-6.323-7.384-8.918-.716-.69-1.44-2.428-2.706-2-.995.353-.93 3.2-.716 4.073 1.09 7.448 4.065 18.263 4.065 18.263zm37.372-.78c-1.704-1.826-2.822-4.12-3.208-6.585 0 .354-2.614.354-4.056-1.29-.995-1.127-.362-1.86.363-3.117 1.86-3.198 4.863-5.718 7.746-8.136.81-.604 1.627-1.47 2.79-.93.994.428.715 2.334.548 3.115-1.083 5.72-2.48 11.376-4.183 16.943z" fill="#FFF"/><path d="M53.564 20.422c-1.98.51-4.138 1.636-5.105 3.487-.43-2.196 1.645-4.65 3.393-5.832.333-.21.312-.703-.037-.886-.162-.085-.357-.076-.512.022-2.157 1.562-4.417 4.5-3.784 7.188.076.262.354.41.614.325l-.075.28c-.085.603.93.864.994.26.446-2.158 2.706-3.376 4.77-3.897.372-.076.522-.526.27-.81-.133-.15-.342-.204-.53-.138zM17.457 18.06c-.55-.354-.995.428-.55.865 1.433 1.004 3.182 3.05 3.395 4.956-.93-1.86-3.05-2.975-5.105-3.486-.386-.005-.633.41-.445.747.042.076.103.14.176.184 2.073.52 4.324 1.73 4.77 3.896.106.328.5.46.78.26.273.192.653.06.745-.26.735-2.66-1.6-5.728-3.766-7.16z" fill="#F1662A"/></svg></span><p class="course-loading-overlay__message"><b class="course-loading-overlay__message-title">Loading…</b><br><span class="course-loading-overlay__message-text">Everything will be ready in few seconds</span></p></div></div><div class="course-layout__sidebar course-theory"><div class="course-theory__inner course-theory__inner--left-stub"><button class="course-theory__close icon-close icon-close--light" type="button">Close</button><ul class="course-tabs course-tabs--non-interactive course-layout__theory-heading js--theory-tabs"><li class="course-tabs__item course-tabs__item--external course-tab course-tab--centered"><span class="course-tab__icon"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#icon-theory"></use></svg></span><span class="course-tab__title">Theory</span></li><li class="course-tabs__item course-tabs__item--internal course-tab course-tab--centered course-tab--active js--theory-tab__theory"><span class="course-tab__icon"><svg aria-hidden="true"><use xlink:href="/img/sprites/courses.svg#icon-theory"></use></svg></span><span class="course-tab__title">Theory</span></li><li class="course-tabs__item course-tabs__item--internal course-tab course-tab--centered js--theory-tab__comments"><span class="course-tab__icon"><svg aria-hidden="true" style="width: 16px; height: 16px; fill: #2e2c9c;"><use xlink:href="/img/sprites/up.svg#comment"></use></svg></span><span class="course-tab__title">Comments</span></li></ul><section class="course-theory__content"><div class="js--theory-pane__theory course-theory__content-inner"><h1 class="course-theory__content-heading">The align-content property, alignment of flex container lines</h1><div class="course-theory__content-text"><p>Remember the <code>justify-content</code> property, which controls the distribution of flex items along the main axis?</p><p>There is a very similar property <code>align-content</code>, which controls the alignment of <em>rows</em> of flex items along the <em>cross</em> axis. These properties have practically identical values:</p><ul><li><p><code>flex-start</code>,</p></li><li><p><code>flex-end</code>,</p></li><li><p><code>center</code>,</p></li><li><p><code>space-between</code>,</p></li><li><p><code>space-around</code>,</p></li><li><p>and <code>stretch</code>, which is also a value of <code>align-content</code>, but which is absent from <code>justify-content</code> and is the default value.</p></li></ul><p>The <code>align-content</code> property overrides any other assigned value of <code>align-items</code>, which controls the alignment of the flex items along the cross axis. This happens when there is only one row of flex items and when there are several such rows.</p><div class="info info--frame-heading info--frame-heading--bytheway info--green"><p>Previously the specification prescribed a different behavior:</p><ul><li>if there is only one row of flex items, then <code>align-items</code> takes precedence;</li><li>if there are several rows, then <code>align-content</code> takes precedence.</li></ul><p>For a fairly long time this was the chosen behavior in all browsers. But in early 2019, the behavior was updated in all modern browsers according to the specification.</p><p>You may encounter the old behavior in this assignment if you are completing this chapter in an old browser version.</p></div></div></div><div class="js--theory-pane__comments hidden course-theory__content-inner"><div class="course-theory__content-text"><h2 class="course-theory__content-heading">Comments</h2><div id="disqus_thread"></div><script>
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<html lang="en">
<head>
<meta charset="utf-8">
<title>Alignment of flex container lines, align-content</title>
<link href="course.css" rel="stylesheet">
<link href="style.css" rel="stylesheet">
</head>
<body class="house">
<div class="room room-1">
<div class="rug simba"></div>
<div class="rug rudolf"></div>
<div class="rug muffin"></div>
<div class="rug massimo"></div>
</div>
<div class="room room-2">
<div class="rug simba"></div>
<div class="rug rudolf"></div>
<div class="rug muffin"></div>
<div class="rug massimo"></div>
</div>
</body>
</html>
</div></div><div class="js--editor course-editor course-layout__editor course-editor--hidden" id="" data-tab="css" data-split=""><span class="course-editor__label"><span class="course-editor__label-item">CSS</span><button class="course-editor__label-item course-editor__label-item--interactive hidden js--editor__unsplit-button course-editor__label-item--simple" title="No split" type="button"><svg width="7" height="10" viewBox="0 0 7 10" xmlns="http://www.w3.org/2000/svg"><g stroke="currentColor" fill="none" fill-rule="evenodd"><path stroke-linecap="round" d="M.6 3.503L3.443.518l2.842 2.985"></path><path d="M3.5 1.5v7.16" stroke-linecap="square"></path></g></svg></button></span><div class="course-editor__item" id="css-editor">.room {
display: flex;
flex-wrap: wrap;
height: 150px;
}
.rug {
min-height: 20px;
width: 80px;
}
.room-1 {
align-content: stretch;
align-items: flex-end;
}
.room-2 {
align-content: stretch;
align-items: flex-start;
}
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