body {
    margin: 0;
    font-family: Verdana, Arial;
    font-size: 14px;
}

#window_error {
    height: 200px;
    width: 500px;
    position: fixed;
    top: 30vh;
    left: 0;
    right: 0;
    margin: auto auto;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-family: Verdana, Arial;
    font-size: 16px;
    background: #880808;
    transition: opacity 1s ease-in-out;
    opacity: 0;
}

#frameholder {
    height: 100vh;
    width: 100vw;
    display: block;
    position: relative;
}

#office_frame {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: 0;
    border: none;
    display: block;
    transition: opacity 1s ease-in-out;
}