.button1 a img:hover{
    filter: alpha(opacity='80');
    -moz-opacity: 0.8;
    -khtml-opacity: 0.8;
    opacity: 0.8;
}
.button1{
}
.videoplay{
    width:100%;
    height: 55px;
    position:absolute;
    left:0;top:450px;
}