#slider {
    width: 250px;
    height: 33px;
    position: relative;
    border-radius: 2px;
    background-color: #dae2d0;
    overflow: hidden;
    text-align: center;
    user-select: none;
    -moz-user-select: none;
    -webkit-user-select: none;
}

#slider_bg {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background-color: #7AC23C;
  z-index: 1;
}

#label {
    width: 38px;
    position: absolute;
    left: 0;
    top: 0;
    height: 33px;
    line-height: 30px;
    border: 1px solid #cccccc;
    background: #fff;
    z-index: 3;
    cursor: move;
    color: #000000;
    font-size: 12px;
    font-weight: 900;
}

#labelTip {
  position: absolute;
  left: 0;
  width: 100%;
  height: 100%;
  font-size: 12px;
  font-family: 'Microsoft Yahei', serif;
  color: #787878;
  line-height: 33px;
  text-align: center;
  z-index: 2;
}

.txtRoll {
    background-image: linear-gradient(to right,black,black, white,black,black, white,black);
    -webkit-text-fill-color: transparent;
    -webkit-background-clip: text;
    -webkit-background-size: 200% 100%;
    animation: bgp 3s infinite linear;
}

@-webkit-keyframes bgp {
    0% {
        background-position: 0 0;
    }

    100% {
        background-position: -100% 0;
    }
}