IE 10、IE 11 CSS Hack

ie11hack  ：http://stackoverflow.com/questions/20541306/how-to-write-a-css-hack-for-ie-11 

/*ie11 css hack*/ 
@media all and (-ms-high-contrast:none) { 
*::-ms-backdrop, .class   {      :   ;} 
} 
/*ie11         */ 
/*ie10 css hack*/ 
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) { 
.class   {      :   ;} 
}