/* 마우스오버 CSS설정 */
#twitter { float:left; background:url(./images/twitter.gif) 
no-repeat left top; padding:0 0 0 200px; height:40px; line-height:40px; 
font-size:11px; display:inline; margin:0 0 0 0px;}
#twitter:hover { background-position:left bottom; }