filter过滤:blur(模糊半径) 模糊半径越大,越模糊 blur()
- background-repeat: no-repeat;
- background-size: cover;
- background-position: 50%;
- -webkit-filter: blur(20px);
- filter: blur(20px);
- -webkit-transform: scale(1.5);
- -ms-transform: scale(1.5);
- transform: scale(1.5);
如图 :