.container {
    width: 100%;
}

.row {
    display: flex;
    flex-wrap: wrap
}

.col {
    flex: 1;
}

.col-1 {
    flex: 1;
}

.gauge {
    position: relative;
    border-radius: 50%/100% 100% 0 0;
    background-color: var(--color, #a22);
    overflow: hidden;
}

.gauge:before {
    content: "";
    display: block;
    padding-top: 50%;
    /* ratio of 2:1*/
}

.gauge .chart {
    overflow: hidden;
}

.gauge .mask {
    position: absolute;
    left: 20%;
    right: 20%;
    bottom: 0;
    top: 40%;
    background-color: #fff;
    border-radius: 50%/100% 100% 0 0;
}

.gauge .percentage {
    position: absolute;
    top: -1px;
    left: -1px;
    bottom: 0;
    right: -1px;
    background-color: var(--background, #aaa);
    transform: rotate(var(--rotation));
    transform-origin: bottom center;
    transition-duration: 600;
}

.gauge:hover {
    --rotation: 100deg;
}

.gauge .value {
    position: absolute;
    bottom: 0%;
    left: 0;
    width: 100%;
    text-align: center;
}

.gauge .min {
    position: absolute;
    bottom: 0;
    left: 5%;
}

.gauge .max {
    position: absolute;
    bottom: 0;
    right: 5%;
}