dify/web/app/components/base/slider/style.css

.slider {
    position: relative;
}

.slider-thumb {
    width: 18px;
    height: 18px;
    background-color: white;
    border-radius: 50%;
    position: absolute;
    top: -9px;
    box-shadow: 0px 1px 2px 0px rgba(0, 0, 0, 0.08);
    cursor: pointer;

}

.slider-thumb:focus {
    outline: none;
}

.slider-track {
    background-color: #9CA3AF;
    height: 2px;
}

.slider-track-1 {
    background-color: #E5E7EB;
}