html {
    background-color: transparent;
}

#title {
    text-align: center;
    color: aliceblue;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

#notion {
    filter: opacity(0);
    width: 125px;
    height: 100px;
    border: 0px solid #ccc;
    /* border-radius: 10px; */
    padding: none;
    transition: width 2s, height 2s;
    transition-delay: 0.3s; 
}

#notion:hover {
    filter: opacity(1);
    width: 900px;
    height: 400px;
}

div,
iframe {
    margin: 0 auto;
    display: block;
    position: fixed;
}