body { 
    margin: 0; 
    padding: 0; 
}
#map {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100%;
}

#zoom-indicator {
    display: inline-block;
    font-size: 11px;
    color: #333;
    background: rgba(255,255,255,0.8);
    padding: 0 4px;
    margin-right: 4px;
    border-radius: 2px;
    vertical-align: middle;
    line-height: 20px;
}