#main_menu
{
	float: left;
  	height: 100%;
}

#main_menu ul
{
    list-style-type: none;
    padding-right:20px;
    height: 80%;
    margin: 5px auto;
}

#main_menu li
{
    float: left;
    padding-left:20px;
}

#main_menu ul li a
{
    font-size: 14px;
    display: block;
	padding:5px 20px 5px 20px;
	color: gold;
  	height: 40px;
  	text-decoration: none;  
}

#main_menu ul li a#bold
{
    font-size: 18px;
}

#main_menu li a:hover
{
  	background: #3C3C3C;
	background: linear-gradient(top, navy 0%, cornflowerblue 70%);
    background: -moz-linear-gradient(top, navy 0%, cornflowerblue 70%);
    background: -webkit-linear-gradient(top, navy 0%, cornflowerblue 70%);  
}

#main_menu ul li:hover a
{
	color: #FFFFFF;
}

#main_menu ul li:hover > ul{margin:0px; padding:0px; background:#4080d0; border:1px solid navy;}