body {
    background: #000;
}
.progress_page {
    background: #000;
}
.diagram {
    width: 129px;
    height: 129px;
    border-radius: 50%;
    background: #b5fc4e;
    position: relative;
    overflow: hidden;
}

.diagram::before {
    content: '';
    display: block;
    position: absolute;
    top: 11px;
    left: 11px;
    right: 11px;
    bottom: 11px;
    border-radius: 50%;
    background: #000;
    z-index: 3;
    opacity: 1;
}
.diagram .piece {
    width: 100%;
    height: 100%;
    left: 0;
    right: 0;
    overflow: hidden;
    position: absolute;
}

.diagram .piece::before {
    content: '';
    display: block;
    position: absolute;
    width: 50%;
    height: 100%;
}

.diagram .piece.left {
    transform: rotate(0deg);
    z-index: 2;
    border-radius: 50%;
}

.diagram.over_50 .piece.left {
    transform: rotate(180deg);
}

.diagram .piece.right {
    transform: rotate(180deg);
    z-index: 1;
    border-radius: 50%;
}

.diagram.over_50 .piece.right {
    transform: rotate(360deg);
}

.diagram .left::before {
    background: rgb(250, 250, 250);
}

.diagram.over_50 .left::before {
    background: #b5fc4e;
}

.diagram .right::before {
    background: rgb(250, 250, 250);
}

.diagram .text {
    position: absolute;
    z-index: 3;
    top:0;
    bottom: 0;
    left:0;
    right: 0;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.diagram .text b {
 font-family: 'Roboto', sans-serif;
    font-size: 23px;   
    color: #fff;
}

.diagram .text span {
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    color: #fff;
    display: block;
}