#countdownPlus {
    float: right;
    color: green;
    background-color: black;
    display: block;
    padding: 20px;
    font-size: 2em; 
    font-weight: bold;
    font-family: 'Courier New', Courier, monospace;
    width: 450px;
    height: 200%;    
}
#countdown {
    margin-bottom: 10px;
}
#timer {
    font-size: xx-large; 
    font-weight: bold;
}