Css/html兼容性问题

IEHacking
property:all-ie\9; property:gte-ie8\0;*property:lte-ie7; +property:ie7; _property:ie6;
padding:10px;
padding:9px\9; /* all ie */
padding:8px\0; /* ie8-9 */
*padding:5px; /* ie6-7 */
+padding:7px; /* ie7 */
_padding:6px; /* ie6 */


电话号码IE11+自动加下划线问题    
<meta name="format-detection" content="telephone=no"/>