freeCodeCamp/curriculum/challenges/english/01-responsive-web-design/applied-visual-design/create-a-graphic-using-css.english.md

id, title, challengeType, isHidden, videoUrl, forumTopicId

id	title	challengeType	isHidden	videoUrl	forumTopicId
587d78a6367417b2b2512add	Create a Graphic Using CSS	0	false	https://scrimba.com/c/cEDWPs6	301048

Description

By manipulating different selectors and properties, you can make interesting shapes. One of the easier ones to try is a crescent moon shape. For this challenge you need to work with the box-shadow property that sets the shadow of an element, along with the border-radius property that controls the roundness of the element's corners. You will create a round, transparent object with a crisp shadow that is slightly offset to the side - the shadow is actually going to be the moon shape you see. In order to create a round object, the border-radius property should be set to a value of 50%. You may recall from an earlier challenge that the box-shadow property takes values for offset-x, offset-y, blur-radius, spread-radius and a color value in that order. The blur-radius and spread-radius values are optional.

Instructions

Manipulate the square element in the editor to create the moon shape. First, change the background-color to transparent, then set the border-radius property to 50% to make the circular shape. Finally, change the box-shadow property to set the offset-x to 25px, the offset-y to 10px, blur-radius to 0, spread-radius to 0, and color to blue.

Tests

tests:
  - text: The value of the <code>background-color</code> property should be set to <code>transparent</code>.
    testString: assert(code.match(/background-color:\s*?transparent;/gi));
  - text: The value of the <code>border-radius</code> property should be set to <code>50%</code>.
    testString: assert(code.match(/border-radius:\s*?50%;/gi));
  - text: The value of the <code>box-shadow</code> property should be set to 25px for <code>offset-x</code>, 10px for <code>offset-y</code>, 0 for <code>blur-radius</code>, 0 for <code>spread-radius</code>, and finally blue for the color.
    testString: assert(code.match(/box-shadow:\s*?25px\s+?10px\s+?0(px)?\s+?0(px)?\s+?blue\s*?;/gi));

Challenge Seed

<style>
  .center {
    position: absolute;
    margin: auto;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100px;
    height: 100px;
    background-color: blue;
    border-radius: 0px;
    box-shadow: 25px 10px 10px 10px green;
  }

</style>
<div class="center"></div>

Solution

<style>
  .center {
    position: absolute;
    margin: auto;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100px;
    height: 100px;
    background-color: transparent;
    border-radius: 50%;
    box-shadow: 25px 10px 0 0 blue;
  }
</style>
<div class="center"></div>