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HTML5 - Basic Exercises, Practice, Solution

[An editor is available at the bottom of the page to write and execute the scripts.]

42. How to define the root of an HTML document?

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>HTML Document</title>
</head>
<body>

</body>
</html>

Try it in the following editor or see the solution.

a. How to specify the address of the document's cache manifest?

See the Pen html css common editor by w3resource (@w3resource) on CodePen.


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HTML-CSS: Tips of the Day

Why is vertical-align: middle not working on my span or div?

This seems to be the best way - some time has passed since my original post and this is what should be done now:

HTML Code:

<div class="main">
  <div class="inner"> This </div>
</div>

CSS Code:

.main {
  display: table;
  
  /* optional css start */
  height: 90px;
  width: 90px;
  /* optional css end */
}
        
.inner {
  border: 1px solid #000000;
  display: table-cell;
  vertical-align: middle;
}

Live Demo:

See the Pen html css common editor by w3resource (@w3resource) on CodePen.