body  
{
width: 80%; 
margin-left:auto; 
margin-right: auto; 
min-height:100%;
height:100%;       
}
.maindiv
{
border:1px solid grey;
position:absolute;
width: 80%;
}
.sub_div_1
{
position:relative;
float:left;
top:1px;
left:1px;
width: 33%;
}
.sub_div_2
{
position:relative;
float:left;
top:1px;
left:2px;
width: 33%;
}
.sub_div_3
{
position:relative;
float:left;
top:1px;
left:3px;
width: 33%;
}
.sub_div_1  p,.sub_div_2  p,.sub_div_3  p
{
margin-left:43px;
}
.sub_div_1 ol li a,.sub_div_2 ol li a, .sub_div_3 ol li a
{
color:gray;
text-decoration: none;
}
.sub_div_1 ol li a:hover,.sub_div_2 ol li a:hover, .sub_div_3 ol li a:hover
{
color:black;
}