How Can I Create Partial Borders in CSS Without Extra HTML Elements?

Getting Creative with Border Length

In web development, styling elements with borders can add visual appeal to your designs. However, controlling the length of borders can be tricky, especially when you want to create partial borders. This article will explore a solution to limit border length using CSS generated content.

To achieve a half-length border on the left-hand side of a div without adding extra elements, CSS can come to the rescue. By leveraging the power of generated content, you can create a hidden element that acts as the desired border.

Consider the following CSS code:

div {
  position: relative;
}

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

Here, the main div element has a relative position to allow the generated content to position itself accordingly. The generated content is represented by the ::after pseudo-element, which has an empty content property to avoid displaying any text.

The generated content is positioned absolutely, with its bottom and left coordinates set to 0. This ensures that the "border" aligns with the bottom left corner of the div. The height of the generated content is set to 50%, causing the border to extend halfway up the left side. The width is set to 1px, determining the thickness of the border.

Using this technique, you can create partial borders without cluttering your HTML with additional elements. It's a versatile solution that grants you more flexibility when customizing the appearance of your web pages.

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