.head { width:760px; margin:auto; margin-top:4px; font-size:12px}
.head .logo { width:150px; height:55px; float:left  }
.head .r {  height:55px; float:right  }
.menu { clear:both; width:760px; height:24px; line-height:24px; margin:auto; border:1px solid #bbbbbb; background-color:#f4f4f4; text-align:center; font-size:12px  }