Practical lesson
Write a normal sentence first. Then decide which word is truly important and which word needs emphasis. Use the semantic HTML tag for that meaning. Let CSS decide exactly how the browser should make it look.
Try it yourself
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HTML5/HTML Text Formatting
Make Meaning Visible
Code
editableStarter example
Code
<p>This is <strong>important</strong>.</p>
<p>This is <em>emphasized</em>.</p>
<p><mark>Important note</mark></p>
<p><del>Old price</del> <ins>New price</ins></p> Live preview