@charset "UTF-8";

#container {
    box-sizing:border-box;
    display: block;
    width: 95%;
    padding: 10px;
    margin-left: auto;
    margin-right: auto;
    border: solid 2px black;
    border-radius: 8px;
    line-height: 2em;
    font-size: large;
    font-family: Arial, Helvetica, sans-serif;
    background-color: gray;
    background-image: url("background.jpg");
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    height: 500px;
    overflow-y: auto;
}