#Nav1 { position:absolute; visibility:hidden; left:20px; }
#Nav2 { position:absolute; visibility:hidden; left:170px; }
#Nav3 { position:absolute; visibility:hidden; left:320px; }
#Nav4 { position:absolute; visibility:hidden; left:470px; }
#Nav5 { position:absolute; visibility:hidden; left:620px; }