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HTML-CSS: Truncate multiline text

HTML-CSS : Exercise-43 with Solution

Using HTML, CSS truncates text that is longer than one line.

  • Use overflow: hidden to prevent the text from overflowing its dimensions.
  • Set a fixed width to ensure the element has at least one constant dimension.
  • Set height: 109.2px as calculated from the font-size, using the formula font-size * line-height * numberOfLines (in this case 26 * 1.4 * 3 = 109.2).
  • Set height: 36.4px as calculated for the gradient container, based on the formula font-size * line-height (in this case 26 * 1.4 = 36.4).
  • Use background with linear-gradient() to create a gradient from transparent to the background-color.

HTML Code:

<!--License: https://bit.ly/3GjrtVF-->
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>Using HTML, CSS truncates text that is longer than one line</title>
</head>
<body>
<p class="truncate-text-multiline">
    The quick brown fox jumps over the lazy dog. The quick brown fox jumps over the lazy dog.
  The quick brown fox jumps over the lazy dog.
</p>
</body>
</html>

CSS Code:

.truncate-text-multiline {
  position: relative;
  overflow: hidden;
  display: block;
  height: 109.2px;
  margin: 0 auto;
  font-size: 26px;
  line-height: 1.4;
  width: 400px;
  background: #f5f6f9;
  color: #333;
}

.truncate-text-multiline:after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 150px;
  height: 36.4px;
  background: linear-gradient(to right, rgba(0, 0, 0, 0), #f5f6f9 50%);
}

HTML-CSS Editor:

See the Pen html-css-practical-exercises by w3resource (@w3resource) on CodePen.


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HTML-CSS: Tips of the Day

Border length smaller than div width?

You can use pseudoelements. e.g.

CSS Code:

div {
  width   : 200px;
  height  : 50px;   
  position: relative;
  z-index : 1;
  background: #eee;
}

div:before {
  content : "";
  position: absolute;
  left    : 0;
  bottom  : 0;
  height  : 1px;
  width   : 50%;  /* or 100px */
  border-bottom:1px solid magenta;
}

HTML Code:

<div>Item 1</div>
<div>Item 2</div>

if you need a right-aligned border, just change left: 0 with right: 0

if you need a center-aligned border just simply set left: 50px;

Ref: https://bit.ly/3AolVbh

 

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