* {
    padding: 0;
    margin: 0;
}

/* background Color */

.dark {
    background: #222;
}

.white {
    background: whitesmoke;
}

/** Background Color **/

.overflow, .circle-line {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.overflow {
    z-index: 9998;
    width: 100vw;
    height: 100vh;
}

.circle-line {
    z-index: 9999;
    width: 200px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.circle-red,.circle-green,.circle-yellow,.circle-blue{
    position: relative;
    width: 30px;
    height: 30px;
    border-radius: 30px;
    margin: 5px;
}

.circle-red {
    background-color: #EA4335;
    animation: movingUp 0.5s infinite alternate;
  
}

.circle-blue {
    background-color: #4285f4;
    animation: movingUp 0.5s 0.2s infinite alternate;
   
}

.circle-green {
    background-color: #34A853;
    animation: movingUp 0.5s .5s infinite alternate;
    
  
}

.circle-yellow {
    background-color: #FBBC05;
    animation: movingUp 0.5s .7s infinite alternate;
    
}

/* CSS ANIMATION */

@keyframes movingUp {
    from {
    
        top: 0px;
        
    }

    to {
        
        top: -30px;
    }
}