.ozadje {
    position: absolute;
    width: 100vw;
    height: 88vh;
    top: 0px;
    left: 0px;
}

.lucka {
    position: fixed;
    width: 31.25vw;
    height: 43.47826086956522vh;
    background: radial-gradient(rgba(255, 255, 255, 0.4) 3%,                                rgba(255, 255, 255, 0) 60%);
    pointer-events: none;
    border-radius: 50%;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    -ms-border-radius: 50%;
    -o-border-radius: 50%;
    transition: 0.01s;
    -webkit-transition: 0.01s;
    -moz-transition: 0.01s;
    -ms-transition: 0.01s;
    -o-transition: 0.01s;
    margin-top: 11vh;
    margin-left: 8vw;
}