body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

#container {
    /* properties */
    box-sizing: border-box;
    width: 80%;
    height: auto;
    margin: 20px auto;
    border: 3px solid #333;
    padding: 20px;
    display: block;
    border-radius: 15px;
    
    
    background-image: url(../images/background.jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    
    
    color: #333;
    font-size: 30px;
}
#container p {
    margin-bottom: 30px;
}