最近需要一个HTML可以联动的百分比进度条，网上找了一下没有，自己手动实现了一个。
需要解决的问题，AB两个进度条需要按照百分比A+B=100%，A进度条可以拖动，B进度条联动，并且有进度颜色的变化。实现功能如下：
HTML代码：
<div class="percentage-container" >
<div class="a-percentage" data-x='30'>
<div class="a-percentage-bar"></div>
</div>
<div class="b-percentage" data-x='70'>
<div class="b-percentage-bar"></div>
</div>
</div>CSS代码：
.percentage-container {
margin: 20px auto;
width: 600px;
text-align: center;
}.percentage-container .a-percentage {
margin: 0;
width: 400px;
cursor:pointer;
}
.a-percentage {
float:left;
padding: 2px;
background: rgba(0, 0, 0, 0.25);
border-radius: 6px;
-webkit-box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.25), 0 1px rgba(255, 255, 255, 0.08);
box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.25), 0 1px rgba(255, 255, 255, 0.08);
}
.a-percentage-bar {
position: relative;
height: 16px;
border-radius: 4px;
-webkit-transition: 0.2s linear;
-moz-transition: 0.2s linear;
-o-transition: 0.2s linear;
transition: 0.2s linear;
-webkit-transition-property: width, background-color;
-moz-transition-property: width, background-color;
-o-transition-property: width, background-color;
transition-property: width, background-color;
-webkit-box-shadow: 0 0 1px 1px rgba(0, 0, 0, 0.25), inset 0 1px rgba(255, 255, 255, 0.1);
box-shadow: 0 0 1px 1px rgba(0, 0, 0, 0.25), inset 0 1px rgba(255, 255, 255, 0.1);
background: url("img/stripes.png") 0 0 repeat;
background-color: #FF5400;
}
.percentage-container .b-percentage {
margin: 0;
width: 400px;
cursor:pointer;
}
.b-percentage {
float:left;
padding: 2px;
background: rgba(0, 0, 0, 0.25);
border-radius: 6px;
-webkit-box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.25), 0 1px rgba(255, 255, 255, 0.08);
box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.25), 0 1px rgba(255, 255, 255, 0.08);
}
.b-percentage-bar {
position: relative;
height: 16px;
border-radius: 4px;
-webkit-transition: 0.2s linear;
-moz-transition: 0.2s linear;
-o-transition: 0.2s linear;
transition: 0.2s linear;
-webkit-transition-property: width, background-color;
-moz-transition-property: width, background-color;
-o-transition-property: width, background-color;
transition-property: width, background-color;
-webkit-box-shadow: 0 0 1px 1px rgba(0, 0, 0, 0.25), inset 0 1px rgba(255, 255, 255, 0.1);
box-shadow: 0 0 1px 1px rgba(0, 0, 0, 0.25), inset 0 1px rgba(255, 255, 255, 0.1);
