body {
    height: 100vh;
    overflow: hidden;
    background-color: #121212;
    color: #fafafa;
    font-family: "Calibri", sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

#hide {
    display: inline-block;
    max-width: 0%;
    vertical-align: bottom;
    overflow: hidden;
    white-space: nowrap;
    transition: max-width 1s ease-in-out;
}

h1 {
    cursor: default;
    font-size: 5vw;
}

h1:hover #hide {
    max-width: 100%;
}