SOURCE

<ul>
<li><a href="#home">Home</a></li>
<li><a href="#news">News</a></li>
<li><a href="#contact">Contact</a></li>
<li><a href="#about">About</a></li>
</ul>

<button class="aaa">OK</button>

ul
{
	list-style-type:none;
	margin:0;
	padding:0;
	overflow:hidden;
}
li
{
	float:left;
}
a:link,a:visited
{
	display:block;
	width:120px;
	font-weight:bold;
	color:#FFFFFF;
	background-color:#98bf21;
	text-align:center;
	padding:4px;
	text-decoration:none;
	text-transform:uppercase;
}
a:hover,a:active
{
	background-color:#7A991A;
}



.aaa
{
  width:40px;
  height:25px;
  border:solid 1px #dedede;
  
}