how to make the links take the user to a specified section of a web page code example

Example 1: how to add an html anchor

<h2 id="Lorem_Ipsum">Lorem Ipsum</h2> <!--The anchor-->
<a href="#Lorem_Ipsum">top</a> <!--Linking to the anchor-->

Example 2: go to id html

<a href="#sushi">Sushi</a>
<a href="#bbq">BBQ</a>

Sample section:
<div id='sushi'><a name='sushi'></a></div>
<div id='bbq'><a name='bbq'></a></div>