@charset "utf-8";

 

/*仅IE6和IE7识别*/
@media screen\9 {  }  

/*仅IE6和IE7、IE8识别*/
@media \0screen\,screen\9 {  } 

/*仅IE8识别*/
@media \0screen {  } 

/*仅IE8-10识别*/
@media screen\0 {  }  

/*仅IE9和IE10识别*/
@media screen and (min-width:0\0) {  }  

/*仅IE10/11识别*/ 
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {  

   .videobg video {width: 100%;height:auto;display: block;}	

}