.container{width:990px;}
.left-guestbook{display:inline-block;_overflow:hidden;vertical-align:top; padding-right:30px;width:45%;*zoom:1;*display:inline;}
.right-guestbook{display:inline-block;_overflow:hidden;vertical-align:top;width:50%;*zoom:1;*display:inline;}
.left-content{display:inline-block;_overflow:hidden;vertical-align:top; padding-right:10px;*zoom:1;*display:inline;}
.right-content{display:inline-block;_overflow:hidden;vertical-align:top;*zoom:1;*display:inline;width:300px;}