Check out my nested ul list:
<ul> <li> <a href="/"></a> </li> <li> <a href="/"> </a> <ul> <li> <a href="/"></a> <ul> <li> <a href="/"></a> </li> <li> <a href="/"></a> <ul> <li> <a href="/"></a> </li> <li> <a href="/"></a> </li> </ul> </li> </ul> </li> <li> <a href="/"></a> </li> </li> </li> </ul>
And this list could go even deeper.
If every ul > li > a needs to have padding-left+10 of its parent a tag.