.container-color  {
    position: relative;
    background:url(../images/urban.jpg) no-repeat center center fixed;    
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    width: 100%;       
}
#myCanvas{
    height:250px;
    width:100%;
    max-width:100%;
    min-width:800px;
    position:absolute;
    bottom:0;
}
#action{z-index:9999;}