html {
content: '';
display: block;
position: relative;
bottom: 0;
height: 120px;
background: -moz-linear-gradient(top, rgba(255,255,255,0), #d6d6d6);
}
div{
height:100%;
width:100%;
background: -moz-linear-gradient(top, rgba(255,255,255,0), #d6d6d6);
}