h2
{
}
table.namelist
{
width: 700px;
}
.namelist tr
{
}
.namelist th
{
}
.namelist td
{
text-align: center;
}
/* .namelist td.name
{
text-align: c;
}
*/

UL.student 
{
width: 600px;
}
.student li
{
width: 200px;
float: left;
}

p
{
test-indent 1em;
}
.clear {
    clear:both;　/*floatの解除、ここがポイント*/
}