@-webkit-keyframes bounceInNone { /* 默认 */
    0% {opacity: 0;  }
    100% {opacity: 1; }
}
.f-mask{
	  position: fixed;
    z-index: 1000;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;

    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
    -webkit-animation-duration: .2s;
    animation-duration: .2s;
    animation-name: bounceInNone;
    -webkit-animation-name: bounceInNone;
}

.f-mask-bkg{
    background: rgba(0,0,0,.6);
	
}