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HTML-CSS: Offscreen

HTML-CSS : Exercise-39 with Solution

Using HTML, CSS hides an element completely (visually and positionally) in the DOM while still allowing it to be accessible.

  • Remove all borders and padding and hide the element's overflow.
  • Use clip to define that no part of the element is shown.
  • Make the height and width of the element 1px and negate them using margin: -1px.
  • Use position: absolute so that the element does not take up space in the DOM.
  • Note: This technique provides an accessible and layout-friendly alternative to display: none (not readable by screen readers) and visibility: hidden (takes up physical space in the DOM).

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 hides an element completely (visually and positionally) in the DOM while still allowing it to be accessible</title>
</head>
<body>
<a class="button" href="https://google.com">
 More about<span class="w3r-offscreen"> w3resource.com</span>
</a>
</body>
</html>

CSS Code:

.w3r-offscreen {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

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

A min-height for table, tr or td:

It's not a nice solution but try it like this:

<table>
    <tr>
        <td>
            <div>Lorem</div>
        </td>
    </tr>
    <tr>
        <td>
            <div>Ipsum</div>
        </td>
    </tr>
</table>

and set the divs to the min-height:

div {
    min-height: 300px;
} 

Ref: https://bit.ly/3Ovu56J