ul
{
float:left;
width:100%;
padding:0;
margin:0;
list-style-type:none;
}
a.three
{
float:left;
width:5.7em;
text-decoration:none;
color:white;
background-color:#00aaff;
padding:0.2em 0.6em;
border-right:1px solid white;
}
a.three:hover {background-color:#00ffff}
li {display:inline}

a.:hover {background: #66ff66}

a.one:link {color: #ff0000}
a.one:visited {color: #0000ff}
a.one:hover {background: #66ff66}

a.two:link {color: #ff0000}
a.two:visited {color: #ff0000}
a.two:hover {font-size: 150%; background-color:#66ff66}