进度条样式

<head>
<style>
.loader-container {
  height: 6px;
  600px;
  position: absolute;
  top: 10%;
  left: 50%;
  margin-top: -3px;
  margin-left: -300px;
  background-color: transparent;
  /*background-image: -webkit-linear-gradient(left, #5bd8ff, #ff0000);
  background-image: -moz-linear-gradient(left, #5bd8ff, #ff0000);
  background-image: -o-linear-gradient(left, #5bd8ff, #ff0000);
  background-image: -ms-linear-gradient(left, #5bd8ff, #ff0000);
  background-image: linear-gradient(left, #5bd8ff, #ff0000);*/
  background-image: -webkit-linear-gradient(top, #000000, #212121);
  background-image: -moz-linear-gradient(top, #000000, #212121);
  background-image: -o-linear-gradient(top, #000000, #212121);
  background-image: -ms-linear-gradient(top, #000000, #212121);
  background-image: linear-gradient(top, #000000, #212121);
  box-shadow: inset 0 -2px 2px rgba(0, 0, 0, 0.4);
  border-radius: 3px 0 0 3px;
}
.loader-container:after {
  content: "";
  display: block;
  position: absolute;
  right: 0;
  top: 50%;
  1em;
  height: 1em;
  border-radius: 50%;
  margin-top: -0.5em;
  margin-right: -1em;
  background-image: -webkit-linear-gradient(top, #000000, #212121);
  background-image: -moz-linear-gradient(top, #000000, #212121);
  background-image: -o-linear-gradient(top, #000000, #212121);
  background-image: -ms-linear-gradient(top, #000000, #212121);
  background-image: linear-gradient(top, #000000, #212121);
}
.loader-container.done:after {
  background: Red;
}
.run .runner {
  content: "";
  position: absolute;
  right: 0;
  height: 100%;
  0%;
  background-color: transparent;
  background-image: -webkit-linear-gradient(top, #000000, #212121);
  background-image: -moz-linear-gradient(top, #000000, #212121);
  background-image: -o-linear-gradient(top, #000000, #212121);
  background-image: -ms-linear-gradient(top, #000000, #212121);
  background-image: linear-gradient(top, #000000, #212121);
  animation: loader 10s linear;
}
.meter {
  position: absolute;
  top: 0;
  right: 0;
  font-size: 2em;
  margin-top: .3em;
  color: #ff0000;
  animation: meter 10s linear;
  text-shadow: 0 -1px 0 #333333;
}
.meter:after {
  content: "%";
}
</style>
</head>
<div id="wrapper" style="background-color: #222222;Height:200px;">
<div class="loader-container">
  <div class="meter">0</div>
  <span class="runner"></span>
</div>
</div>

原文地址:https://www.cnblogs.com/wangjinming/p/3657160.html