Avoid using the <b>, <i>, <s> and <u> tags

These tags are often used for styling purposes. It's recommended not to use them. Instead, use the semantic tags or CSS styles that provide the same appearances.
TagRecommended way
<b><strong>
<i><em>
<s>text-decoration: line-through
<u>text-decoration: underline
For more information about the differences between these tags , please take a look at <b>, <i> vs <strong>, <em>.