.top{background: #009dff; /*background:linear-gradient(to right,#009dff 0,#00c8ff 100%);*/position:fixed;z-index:1031;top:0;left:0;height:4px;transition:all 1s;width:0}
.colors{
    width: 100%;
    height: 4px;
}.top {
  overflow: hidden;
}