.ceair-gay{
        -webkit-filter: grayscale(100%);
        -moz-filter: grayscale(100%);
        -ms-filter: grayscale(100%);
        -o-filter: grayscale(100%);
        filter: grayscale(100%);
        filter: gray;
        filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
        height: -webkit-fill-available;
    }