.logozindex0 {
    z-index: 0;
    position: relative;
}

.logozindex1 {
    z-index: 1;
    position: relative;
}

.logozindex2 {
    z-index: 2;
    position: relative;
}

.logozindex3 {
    z-index: 3;
    position: relative;
}