#my_container  { position:relative; width:755px; margin:5px auto 0 auto; text-align:center; }
#my_contents   { width:500px; float:left; }
#my_navigation { width:250px; float:right; }

#myhome { text-align:center; word-break:break-all; }
#mynavi { padding:0px; }
#mymain { padding:0px; width:500px; }