.to-top-btn {
    position: fixed;
    right: 10px;
    bottom: 10px;
    z-index: 100;
    width: 50px;
    height: 50px;
    border-radius: 25px;
    font-size: 20px;
    line-height: 40px;
}

.meter {
    position: relative;
    border-radius: 5px;
    border: 1px solid #999;
    background: linear-gradient(to right, #9e6 0%, #fb8 66%, #f32 100%);
    height: 1.25em;
    padding: 0;
    width: 100%;
    overflow: hidden;
}

.meter .bar {
    position: absolute;
    top: 0;
    height: 100%;
    right: 0;
    background: #efe;
    display: inline-block;
    padding: 0;
    margin: 0 0 0 auto;
}

.meter .text {
    position: absolute;
    right: 5px;
    overflow: visible;
    font-size: 8pt;
    white-space: nowrap;
    z-index: 1000;
    text-shadow: #fff 1px 1px;
}

.warn {
    background: #F0AD4E;
    font-size: 75%;
    border-radius: 3px;
    color: #fff;
    padding: 1px 3px;
}