adding an id to a section css code example
Example 1: id in css
#id{
color:red;
}
Example 2: div id css
<p class="haut">
<a href="#haut">Haut de page</a>
</p>
#id{
color:red;
}
<p class="haut">
<a href="#haut">Haut de page</a>
</p>