Now let’s see how we can use the triangles that we have already learned to solve real-life problems.
The most obvious example is the triangles pointing either up or down that are used as sorting icons in product catalogs.
What is the advantage of creating these icons with frames? Because you can easily change the dimensions of CSS arrows and assign different colors and sizes. This is very flexible to do.
Control elements that are used for sorting are usually implemented using links. Let’s do the same: let the link contain explanatory text, and then transform the link pseudo-element into an arrow.
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</script><link rel="stylesheet" href="https://assets.htmlacademy.org/css/core.v284.css"><link rel="stylesheet" href="https://assets.htmlacademy.org/css/profile.v236.css"><link rel="stylesheet" href="https://assets.htmlacademy.org/css/course.v246.css"><link rel="stylesheet" href="https://assets.htmlacademy.org/css/course-interface-light.v20.css"><link rel="stylesheet" href="https://assets.htmlacademy.org/css/course-interface-en.v2.css"><script src="https://assets.htmlacademy.org/js/sentry.js" data-sentry="3774884cc81746ed84c0ba7c5cd4ac7b" data-project="26" data-version="2"></script><link rel="stylesheet" href="/css/custom.css"><link rel="stylesheet" href="/css/cookies.css"><link rel="preload" as="script" href="https://assets.htmlacademy.org/js/general.v274.js"><title>Real-Life Triangles, Part 1 — Frames and Backgrounds — HTML Academy</title><meta name="csrf-token" content="84564caf322823086fca37a7326b9bd2a54"><meta property="og:type" content="website"><meta property="og:site_name" content="HTML Academy"><meta name="twitter:url" property="og:url" content="https://htmlacademy.org"><meta name="twitter:title" property="og:title" content="Interactive online courses HTML Academy"><meta name="twitter:description" property="og:description" content="Together we’ll learn how to work with real code, solve true-to-life problems, use cutting edge technologies. 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Preparation</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/background-size-1">2. Background Size, Step 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/background-size-2">3. Background Size, Step 2</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/background-borders">4. Background Borders</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/background-cropping">5. Background Cropping</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/multiple-background-images">6. Multiple Background Images</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/background-position">7. Positioning the background relative to different borders</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/background-repeat-round">8. background-repeat: round</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/background-repeat-space">9. background-repeat: space</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/outer-frame">10. Outer Frame</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/rounding-corners-1">11. Rounding Corners, Part 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/rounding-corners-2">12. Rounding Corners, Part 2</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/border-image-source">13. Frame Image: border-image-source</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/border-image-slice">14. Frame Image: border-image-slice</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/slicing-asymmetrical-images">15. Slicing Asymmetrical Images</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/border-image-repeat-1">16. Frame Image: border-image-repeat, Part 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/border-image-repeat-2">17. Frame Image: border-image-repeat, Part 2</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/border-image-width">18. Frame Image: border-image-width</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/border-image-outset">19. Frame Image: border-image-outset</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/royal-frame">20. Muffin’s Royal Frame</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/eco-frame">21. Muffin’s Eco-Frame</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/round-frame-1">22. Muffin’s Round Frame, Part 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/round-frame-2">23. Muffin’s Round Frame, Part 2</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/challenge-1">24. Challenge: The Sea Wolf</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/frames-triangles-1">25. Frames and Triangles, Part 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/frames-triangles-2">26. Frames and Triangles, Part 2</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/frames-triangles-3">27. Frames and Triangles, Part 3</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/arrow-frame">28. Creating an Arrow with a Frame</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/round-arrow-frame-1">29. Creating a Round Arrow with a Frame, Part 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/round-arrow-frame-2">30. Creating a Round Arrow with a Frame, Part 2</a></li><li class="main-nav__course-contents-item main-nav__course-contents-item--current"><a href="/courses/advanced-styling/frames-and-backgrounds/real-life-triangles-1">31. Real-Life Triangles, Part 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/real-life-triangles-2">32. Real-Life Triangles, Part 2</a></li><li class="main-nav__course-contents-item"><a href="/courses/advanced-styling/frames-and-backgrounds/challenge-2">33. 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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">Real-Life Triangles, Part 1</h1><div class="course-theory__content-text"><p>Now let’s see how we can use the triangles that we have already learned to solve real-life problems.</p><p>The most obvious example is the triangles pointing either up or down that are used as sorting icons in product catalogs.</p><p>What is the advantage of creating these icons with frames? Because you can easily change the dimensions of CSS arrows and assign different colors and sizes. This is very flexible to do.</p><p>Control elements that are used for sorting are usually implemented using links. Let’s do the same: let the link contain explanatory text, and then transform the link pseudo-element into an arrow.</p></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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Sorting:
<a class="arrow arrow-up" href="#">Ascending</a>
<a class="arrow arrow-down" href="#">Descending</a>
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<ul>
<li>Toy mouse</li>
<li>“Sheep hunter” cat teaser</li>
<li>“Wolverine” scratching post </li>
<li>Fragrant dill weed for gourmet cats</li>
</ul>
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