how to link a specific part of a site form athor site in html code example

Example 1: 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>

Example 2: link that scrolls down the page

<a href="#google"></a>

<div id="google"></div>