.uc-mybg {
    background:
        linear-gradient(to top, rgba(0, 36, 71, 0.55), rgba(0, 36, 71, 0.55)),
        url("https://static.tildacdn.com/tild3462-3433-4364-a132-653563626333/IMG_8806.PNG");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}