HTML 5 TutorialsHtml5 What is
In the Html 5 <h3> tag is used to indicate level 3 for heading. Which head tag have to six levels that is <h1> - <h6> .h1 is a most important and h6 is a least important. In the head tag some browser delivers different size that is <h1> is being the largest and h6 is being smallest.
In the above example h3 tag have been added to Level 3 Heading Tag Sentence.