body {
    font-family:Arial, Helvetica, sans-serif;
    line-height: 0%;
    background-color: lightgray;
}
h1 {
    font-size: medium; font-weight: initial
    ;
}

.container{
    height:100vh;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}