How to orientation this list to horizontal?

Question

Code
<nav>
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">Services</a></li>
<li><a href="#">About us</a></li>
</ul>
</nav>
In nav view there is list of element in a order of vertical form and I need to display horizontal list
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Answer 1

What if you make the display of the <li> inline? (using css)

Answer 2

li { float: left; }