HTML5 - Basic Exercises, Practice, Solution

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

44. How to define an inline frame?

HTML Code:

<!DOCTYPE html>
  <meta charset="utf-8">
  <title>Inline frame</title>


Try it in the following editor or see the solution?

a. How to specify the height of an iframe element?

b. How to specify the name of an iframe element?

c. How to enable an extra set of restrictions for the content in an iframe element?

d. How to specify the address of the document to embed in the iframe element?

e. How to specify the HTML content of the page to show in the iframe element?

f. How to specify the width of an iframe element?

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>

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.