#after_layer_slider_1 .flex_column.av_one_third.avia-builder-el-3 {
position: relative;
top: -200px;
background: red; /* remove this, it's for visual purposes */
height: 1000px; /* remove this, it's for visual purposes */
}

#after_layer_slider_1 {
    z-index: 3;
}