.quiz .progress {
    height: 10px;
}

.quiz .chart-pie {
    height: 300px;
}

.quiz .background {
    float: left;
    width: 0;
    height: 100%;
    font-size: 12px;
    color: #61a219;
    text-align: center;
    text-shadow: 0 -1px 0 rgba(0,0,0,0.25);
    background-color: #61a219;
}