body{
    background-color: aqua;
}

.header{
    margin: 150px;
    font-size: 52px;
}
.bilin{
    float: right;
    margin: -520px 100px;
}
ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: black;
}

li {
    float: left;
}

li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}
li a:hover {
    background-color: white;
    color:black;
}
.big-download{
    background-color: white;
    width: 100%;
    height: 550px;
}
.download{
    background-color: blue;
    text-align: left;
    width: 300px;
    height: 400px;
    float: left;
    margin: 1%;
}
#customers
{
	font-family:"Trebuchet MS", Arial, Helvetica, sans-serif;
	width:100%;
    height: 500px;
	border-collapse:collapse;
}
#customers td, #customers th 
{
	font-size:1em;
	border:1px solid #98bf21;
	padding:3px 7px 2px 7px;
}
#customers th 
{
	font-size:1.1em;
	text-align:left;
	padding-top:5px;
	padding-bottom:4px;
	background-color:#A7C942;
	color:#ffffff;
}
#customers tr.alt td 
{
	color:#000000;
	background-color:#EAF2D3;
}