147 lines
3.9 KiB
Markdown
147 lines
3.9 KiB
Markdown
---
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id: 587d78a6367417b2b2512ade
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title: Create a More Complex Shape Using CSS and HTML
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challengeType: 0
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videoUrl: 'https://scrimba.com/c/cPpz4fr'
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forumTopicId: 301050
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dashedName: create-a-more-complex-shape-using-css-and-html
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---
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# --description--
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One of the most popular shapes in the world is the heart shape, and in this challenge you'll create one using pure CSS. But first, you need to understand the `::before` and `::after` pseudo-elements. `::before` creates a pseudo-element that is the first child of the selected element; `::after` creates a pseudo-element that is the last child of the selected element. In the following example, a `::before` pseudo-element is used to add a rectangle to an element with the class `heart`:
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```css
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.heart::before {
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content: "";
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background-color: yellow;
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border-radius: 25%;
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position: absolute;
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height: 50px;
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width: 70px;
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top: -50px;
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left: 5px;
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}
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```
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For the `::before` and `::after` pseudo-elements to function properly, they must have a defined `content` property. This property is usually used to add things like a photo or text to the selected element. When the `::before` and `::after` pseudo-elements are used to make shapes, the `content` property is still required, but it's set to an empty string. In the above example, the element with the class of `heart` has a `::before` pseudo-element that produces a yellow rectangle with height and width of `50px` and `70px`, respectively. This rectangle has round corners due to its 25% `border-radius` and is positioned absolutely at `5px` from the left and `50px` above the top of the element.
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# --instructions--
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Transform the element on the screen to a heart. In the `heart::after` selector, change the `background-color` to `pink` and the `border-radius` to 50%.
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Next, target the element with the class `heart` (just `heart`) and fill in the `transform` property. Use the `rotate()` function with -45 degrees.
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Finally, in the `heart::before` selector, set its `content` property to an empty string.
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# --hints--
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The `background-color` property of the `heart::after` selector should be `pink`.
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```js
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const heartAfter = code.match(/\.heart::after\s*{[\s\S]+?[^\}]}/g)[0];
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assert(
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/({|;)\s*background-color\s*:\s*pink\s*(;|})/g.test(heartAfter)
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);
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```
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The `border-radius` of the `heart::after` selector should be 50%.
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```js
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assert(code.match(/border-radius\s*?:\s*?50%/gi).length == 2);
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```
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The `transform` property for the `heart` class should use a `rotate()` function set to -45 degrees.
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```js
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assert(code.match(/transform\s*?:\s*?rotate\(\s*?-45deg\s*?\)/gi));
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```
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The `content` of the `heart::before` selector should be an empty string.
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```js
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assert(code.match(/\.heart::before\s*?{\s*?content\s*?:\s*?("|')\1\s*?;/gi));
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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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.heart {
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position: absolute;
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margin: auto;
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top: 0;
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right: 0;
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bottom: 0;
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left: 0;
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background-color: pink;
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height: 50px;
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width: 50px;
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transform: ;
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}
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.heart::after {
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background-color: blue;
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content: "";
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border-radius: 25%;
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position: absolute;
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width: 50px;
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height: 50px;
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top: 0px;
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left: 25px;
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}
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.heart::before {
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content: ;
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background-color: pink;
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border-radius: 50%;
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position: absolute;
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width: 50px;
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height: 50px;
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top: -25px;
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left: 0px;
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}
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</style>
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<div class="heart"></div>
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```
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# --solutions--
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```html
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<style>
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.heart {
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position: absolute;
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margin: auto;
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top: 0;
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right: 0;
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bottom: 0;
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left: 0;
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background-color: pink;
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height: 50px;
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width: 50px;
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transform: rotate(-45deg);
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}
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.heart::after {
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background-color: pink;
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content: "";
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border-radius: 50%;
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position: absolute;
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width: 50px;
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height: 50px;
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top: 0px;
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left: 25px;
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}
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.heart::before {
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content: "";
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background-color: pink;
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border-radius: 50%;
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position: absolute;
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width: 50px;
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height: 50px;
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top: -25px;
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left: 0px;
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}
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</style>
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<div class="heart"></div>
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```
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