*{
    box-sizing: border-box;
}

head {
    margin:0;
}
body {
    margin:0;
    background-color:black;
}

.flex {
    display:flex;
    width:100vw;
    height:100vh;
    justify-content:space-around;
    flex-direction: column;
}

.black-boxes {
    display:flex;
    width:1440px;
    height:550px;
    justify-content:space-around;
    flex-direction:column;
    position: relative;
    
}

.box-one {
    width:1440px;
    height:500px;
    background-color:whitesmoke;
    border:red;
    margin-top:20px;
    position: relative;
    z-index:2;
}

.box-two {
    width:1440px;
    height:500px;
    background-color:whitesmoke;
    border:red;
    margin-top:20px;
    position:relative;
    z-index:4;
}

.box-three {
    width:1440px;
    height:500px;
    background-color:whitesmoke;
    border:red;
    margin-top:20px;
    position: relative;
    z-index:6;
}

.box-four {
    width:1440px;
    height:500px;
    background-color:red;
    border:red;
    position:relative;
    margin-top:20px;
    z-index:8;
}

.line {
    
    height:3px;
    color:white;
}
.square {
   
    
    margin: 1px;
    position:absolute;
    z-index:1;

    animation: move 15s 3s  linear, jump 2s ease infinite;
}

.square1 {
    
    margin: 1px;
    position:absolute;
    z-index:3;
    
    animation: move 12s 3s  linear, jump2 2s ease infinite;
}

.square2 {
    
    margin: 1px;
    position:absolute;
    z-index:5;

    animation: move 17s  3s  linear, jump3 2s ease infinite;
}

.square3 {
    
    margin: 1px;
    position:absolute;
    z-index:7;

    animation: move 14s  3s  linear, jump4 2s ease infinite;
}
 
img {
    z-index: 1;
   
}


@keyframes move {
    0% {
        transform:translateX(0);
    }
    100% {
        transform:translateX(100vw);
    }
}
@keyframes jump {
    0%{top:160px}
    50%{top:130px}
    100%{top:160px}
}
@keyframes jump2 {
    0%{top:300px}
    50%{top:270px}
    100%{top:300px}
}

@keyframes jump3 {
    0%{top:440px}
    50%{top:410px}
    100%{top:440px}
}
@keyframes jump4 {
    0%{top:580px}
    50%{top:550px}
    100%{top:580px}
}