#slider {
  /* margin: 100px auto; */
  /* width: 300px; */
  height: 40px;
  position: relative;
  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 {
  position: absolute;
  top: 0;
  left: 0;
  width: 46px;
  height: 100%;
  line-height: 38px;
  background: url(../img/slider.png) no-repeat center center #fff;
  background-size: 16px 16px;
  border: 1px solid #ccc;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  z-index: 3;
  cursor: move;
}

#labelTip {
  position: absolute;
  left: 0;
  width: 100%;
  height: 100%;
  font-size: 13px;
  font-family: 'Microsoft Yahei', serif;
  color: #787878;
  line-height: 38px;
  text-align: center;
  z-index: 2;
  /*字体样式从左到右移动移画*/
  background: -webkit-gradient(
    linear,
    left top,
    right top,
    color-stop(0, #4d4d4d),
    color-stop(0.4, #4d4d4d),
    color-stop(0.5, #fff),
    color-stop(0.6, #4d4d4d),
    color-stop(1, #4d4d4d)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  -webkit-animation: slidetounlock 3s infinite;
}

@keyframes slidetounlock {
  0% {
    background-position: -100px 0;
  }
  100% {
    background-position: 100px 0;
  }
}