How Can CSS Generated Content Limit the Length of an Element's Border?

CSS Methods for Limiting Border Length

In web development, adding borders to elements can enhance visual aesthetics. However, limiting the length of a border can sometimes be necessary to achieve specific design effects. Here we explore a CSS solution to this challenge:

Using CSS Generated Content:

CSS generated content allows you to dynamically create elements without adding any physical elements to the page. This technique can be employed to create a border of a specific length.

Solution:

1. Position the main div relatively using position: relative;.
2. Use the :after pseudo-element to create the border.
3. Set the content property to an empty string ("").
4. Define the background color of the border using background.
5. Position the border absolutely using position: absolute;.
6. Align the border to the desired corner using bottom and left properties.
7. Control the height and width of the border using height and width properties.

Example:

div {
  position: relative;
}

/* Main div for border to extend to 50% from bottom left corner */

div:after {
  content: "";
  background: black;
  position: absolute;
  bottom: 0;
  left: 0;
  height: 50%;
  width: 1px;
}

<div>Lorem Ipsum</div>

This solution creates a black border that extends 50% from the bottom left corner of the div, without adding any extra elements to the page.

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