ee1e8abd87
* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
82 lines
1.8 KiB
Markdown
82 lines
1.8 KiB
Markdown
---
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id: 587d78a3367417b2b2512acf
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title: Change the Position of Overlapping Elements with the z-index Property
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challengeType: 0
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videoUrl: 'https://scrimba.com/c/cM94aHk'
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forumTopicId: 301046
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dashedName: change-the-position-of-overlapping-elements-with-the-z-index-property
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---
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# --description--
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When elements are positioned to overlap (i.e. using `position: absolute | relative | fixed | sticky`), the element coming later in the HTML markup will, by default, appear on the top of the other elements. However, the `z-index` property can specify the order of how elements are stacked on top of one another. It must be an integer (i.e. a whole number and not a decimal), and higher values for the `z-index` property of an element move it higher in the stack than those with lower values.
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# --instructions--
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Add a `z-index` property to the element with the class name of `first` (the red rectangle) and set it to a value of 2 so it covers the other element (blue rectangle).
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# --hints--
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The element with class `first` should have a `z-index` value of 2.
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```js
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assert($('.first').css('z-index') == '2');
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```
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# --seed--
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## --seed-contents--
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```html
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<style>
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div {
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width: 60%;
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height: 200px;
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margin-top: 20px;
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}
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.first {
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background-color: red;
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position: absolute;
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}
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.second {
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background-color: blue;
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position: absolute;
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left: 40px;
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top: 50px;
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z-index: 1;
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}
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</style>
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<div class="first"></div>
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<div class="second"></div>
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```
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# --solutions--
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```html
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<style>
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div {
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width: 60%;
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height: 200px;
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margin-top: 20px;
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}
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.first {
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background-color: red;
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position: absolute;
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z-index: 2;
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}
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.second {
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background-color: blue;
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position: absolute;
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left: 40px;
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top: 50px;
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z-index: 1;
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}
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</style>
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<div class="first"></div>
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<div class="second"></div>
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```
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