*{
    margin: 0;
    padding: 0;
}
body {
    background: #333;
    display: flex;
    width: 100%;
    height: 100vh;
    justify-content: center;
    align-items: center;
}
.main {
    width: 25vw;
    height: 25vw;
    position: absolute;
    display: flex;
    justify-content: start;
    align-items: center;
}