css gradinet background over slides elements

.wpc-slider .et_pb_slide:before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    z-index: 1;
}
.wpc-slider .et_pb_slide_0:before {
    background-image: linear-gradient(180deg,rgba(43,135,218,0.33) 0%,rgba(196, 41, 117, 0.61) 100%);
}
.wpc-slider .et_pb_slide_1:before {
    background-image: linear-gradient(180deg,rgba(218, 148, 43, 0.62) 0%,rgba(228, 15, 15, 0.61) 100%);
}
.wpc-slider .et_pb_slide_2:before {
    background-image: linear-gradient(180deg,#2e354ccf 0%,#4fa8edba 100%);
}