* {
    margin: 0px;
    padding: 0px;
    overflow: hidden;
}

.welcome {
    background-image: linear-gradient(#ff0000,#ba2ef1);
    position: relative;
    height: 100vh;
    Width: 100vw;
    overflow: hidden;
    font-family: sans-serif;
}

h1 {
    color: #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    font-size: calc(100% - 1em);
    z-index: 1;
}

.sub{
    color: #fff;
    top: 60%;
    left: 50%;
    transform: translate(-50%,-50%);
    font-size: 70px;
    z-index: 1;
}

ul li {
    position: absolute;
    border: 1px solid #fff;
    width: 30px;
    height: 30px;
    list-style: none;
    opacity: 0;
}

.square li {
    top: 50vh;
    left: 45vw;
    animation: square 10s linear infinite;
  
}

.square li:nth-child(2) {
    top: 80vh;
    left: 10vw;
    animation-delay: 2s;
}

.square li:nth-child(3) {
    top: 80vh;
    left: 85vw;
    animation-delay: 4s;
}

.square li:nth-child(4) {
    top: 10vh;
    left: 70vw;
    animation-delay: 7s;
}

.square li:nth-child(5) {
    top: 10vh;
    left: 10vw;
    animation-delay: 9s;
}

@keyframes  square {
    0% {
        transform: scale(0) rotateZ(90deg);
        opacity: 1;
        background: #ffffff;
    }
    25% {
        background: #807cbe;
    }
    50% {
        background: #d4d110;
    }
    75% {
        background: #2d08fd;
    }
    100% {
        transform: scale(5) rotateZ(180deg);
        opacity: 0;
    }
}

.circle li {
    bottom: 0;
    left: 15vw;
    animation: circle 10s linear infinite;
    
}

.circle li:nth-child(2) {
    left: 35vw;
    animation-delay: 2s;
}

.circle li:nth-child(3) {
    left: 55vw;
    animation-delay: 5s;
}

.circle li:nth-child(4) {
    left: 85vw;
    animation-delay: 6s;
}

.circle li:nth-child(5) {
    left: 90vw;
    animation-delay: 4s;
}

@keyframes circle {
    0% {
        transform: scale(0) rotate(0deg);
        opacity: 1;
        bottom: 0;
        border-radius: 0;
        background: #7cbe8a;
    }
    50%{
        background: #ee7f17;
    }
    100% {
        transform: scale(5) rotate(1000deg);
        opacity: 0;
        bottom: 90vh;
        border-radius: 50%;
        
    }
}