In this chapter, we will explore the capabilities of 2D transforms in CSS.
What previously could only be done in a browser window using JavaScript (smoothly rearranging and scaling blocks as well as rotating and skewing them) can now easily be implemented in pure CSS.
First, let’s understand the coordinate system in which the object is moved:
The key feature to keep in mind is that the Y-axis is directed downward, not upward, since the web page starts at the top-left corner and then flows downward, and CSS uses the inverse coordinate system.
The first movement we make is horizontal. We will move objects left and right.
We use the following syntax to make this and other transforms:
transform: the transform function (transform value)
You can move an object horizontally using the translateX function. The transform function takes a numerical value, and the possible units of measurement are px, %, em, or in.
For example, this function will move the object 100 pixels to the right along the X-axis:
transform: translateX(100px)
By the way, let’s get acquainted! The main character that you will be asked to control and to transform his world using spells is called Pendalf the Blue. You will go on an exciting adventure together with him…
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Moving objects horizontally</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/move-vertically">2. Moving objects vertically</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/fireball-training">3. Fireball training</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/increase-decrease-size">4. Increasing and decreasing the size</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/defend-city">5. Defending the city</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/begin-journey">6. The beginning of the journey</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/maze">7. The maze</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/battle-1">8. The battle, part 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/battle-2">9. The battle, part 2</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/mysterious-card">10. Test: The mysterious card</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/battle-3">11. The battle, part 3</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/shattered-crystal">12. Test: The shattered crystal</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/final-battle">13. The final battle</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/transform-origin-1">14. Features of transform-origin, part 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/transform-origin-2">15. Features of transform-origin, part 2</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/transform-origin-3">16. Features of transform-origin, part 3</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/transform-origin-4">17. Features of transform-origin, part 4</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/transform-translate">18. Centering with transform: translate</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/rotate-text">19. Rotating the text in blocks</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/rotate-background-text">20. Rotating the text in the background</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/custom-shadows">21. Custom shadows</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/hover-effects-1">22. On-hover effects: buttons, part 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/hover-effects-2">23. On-hover effects: buttons, part 2</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/hover-effects-3">24. On-hover effects: buttons, part 3</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/hover-effects-4">25. On-hover effects: the gallery</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/cards-stack">26. The “stack” of cards</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/round-menu">27. Preparing the round menu</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/round-menu-1">28. Round menu, step 1</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/round-menu-2">29. Round menu, step 2</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/round-menu-3">30. Round menu, step 3</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/round-menu-final">31. The round menu, final part</a></li><li class="main-nav__course-contents-item"><a href="/courses/dynamic/2d-transforms/arrange-cards">32. Test: Arranging the cards</a></li></ul></div></div><a class="main-nav__course-item main-nav__course-button main-nav__course-button--next" href="/courses/dynamic/2d-transforms/move-vertically">Moving objects vertically</a></div><ul class="main-nav__list main-nav__list--user main-nav__list--user-guest"><li class="main-nav__item" itemprop="name"><a class="main-nav__link" href="/signup?redirect_url=%2Fcourses%2Fdynamic%2F2d-transforms%2Fmove-horizontally" title="Sign up" data-modal="open" data-value="register" itemprop="url"><span class="main-nav__icon" aria-hidden="true"><svg aria-hidden="true"><use xlink:href="/img/sprites/general.svg#user"></use></svg></span>Sign up</a></li><li class="main-nav__item main-nav__item--login" itemprop="name"><a class="main-nav__link" href="/login?redirect_url=%2Fcourses%2Fdynamic%2F2d-transforms%2Fmove-horizontally" title="Log in" data-modal="open" data-value="login" itemprop="url"><span class="main-nav__icon" aria-hidden="true"><svg aria-hidden="true"><use 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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">Moving objects horizontally</h1><div class="course-theory__content-text"><p>In this chapter, we will explore the capabilities of 2D transforms in CSS.</p><p>What previously could only be done in a browser window using JavaScript (smoothly rearranging and scaling blocks as well as rotating and skewing them) can now easily be implemented in pure CSS.</p><p>First, let’s understand the coordinate system in which the object is moved:</p><p style="float: left; margin-right: 15px; background-color: #ffffff;"><img src="/assets/courses/32/theory/coordinates-trimed.png" alt="The coordinate system in which the object is moved"></p><p>The key feature to keep in mind is that the Y-axis is directed downward, not upward, since the web page starts at the top-left corner and then flows downward, and CSS uses the <a href="https://en.wikipedia.org/wiki/Cartesian_coordinate_system" target="_blank" rel="nofollow">inverse coordinate system</a>.</p><p>The first movement we make is horizontal. We will move objects left and right.</p><p style="clear: both;"> We use the following syntax to make this and other transforms:</p><pre><code>transform: the transform function (transform value)</code></pre><p>You can move an object horizontally using the <code>translateX</code> function. The transform function takes a numerical value, and the possible units of measurement are <code>px</code>, <code>%</code>, <code>em</code>, or <code>in</code>. <br>For example, this function will move the object 100 pixels to the right along the X-axis:</p><pre><code>transform: translateX(100px)</code></pre><p>By the way, let’s get acquainted! The main character that you will be asked to control and to transform his world using spells is called Pendalf the Blue. You will go on an exciting adventure together with him…</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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left: 30px;
}
.tree {
top: 178px;
left: 400px;
}
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