body {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    margin: 0;
    top: 0;
    left: 0;
    background-image: url('../imgs/userui_background.png');
    background-repeat: no-repeat;
    background-size: fill;
}

body > img {
    margin: 5.5vw -1.5vw 8vw;
    width: 90vw;
    height: auto;
}

body > div {
    width: 80%;
    margin: auto;
    text-align: center;
    color: white;
}

h1, p {
    font-family: 'Kanit', sans-serif;
    text-align: center;
}

h1 {
    font-weight: 700;
    line-height: 90%;
    font-size: 15vw;
    margin: 0 auto 2vw auto;
    width: fit-content;
}

p {
    font-weight: 200;
    font-size: 4vw;
    width: 80%;
    margin: 0 auto;
}

body > div > img {
    margin: 6vw auto 0;
    width: 100%;
}

#error-popup {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: black;
    top: 50%;
    left: 50%;
    width: 14em;
    height: 14em;
    margin-top: -7em;
    margin-left: -7em;
    background-color: #e0e0e0;
    border-radius: 15px;
    position: fixed;
    text-align: center;
    box-shadow: 4px 5px 7px 5px rgba(0,0,0,0.35);
}

#error-popup > img {
    width: 5em;
    height: 5em;
    margin: 0 auto;
    padding: 4vw;
}

#error-popup > h3 {
    font-size: 95%;
    width: 80%;
    margin: 0 auto;
}