.jarallax {
    position: relative;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
    width: 100%;
    height: 1000px;
}


/* Small screens */
@media all and (max-width: 1200px) {
        .jarallax {height: 800px;}
}


/* Small screens */
@media all and (max-width: 760px) {
        .jarallax {height: 800px;}
}


/* Small screens */
@media all and (max-width: 560px) {
        .jarallax {height: 700px;}
}



 


/* hero block */
.demo-table {
    display: table;
    width: 100%;
    height: 580px;
    background-color: rgba(125,125,125,0.4);
}

.demo-table-cell {
    display: table-cell;
    vertical-align: middle;
}

/* gap */
.demo-gap {
    padding-top: 10px;
    background-color: #6F6F6F;
}