/*icon降落*/
@keyframes flyup
{
from {background-position: center -70px;opacity:0;}
to {background-position: center 0;opacity:1;}
}

@-moz-keyframes flyup /* Firefox */
{
from {background-position: center -70px;opacity:0;}
to {background-position: center 0;opacity:1;}
}

@-webkit-keyframes flyup /* Safari 和 Chrome */
{
from {background-position: center -70px;opacity:0;}
to {background-position: center 0;opacity:1;}
}

@-o-keyframes flyup /* Opera */
{
from {background-position: center -70px;opacity:0;}
to {background-position: center 0;opacity:1;}
}

.info-block:hover .b-img{
	animation: flyup .5s;
	-moz-animation: flyup .5s;	/* Firefox */
	-webkit-animation: flyup .4s;	/* Safari 和 Chrome */
	-o-animation: flyup .5s;	/* Opera */	
}