input标签附带提示文字（bootstrap里面输入框的两侧同时添加额外元素）

  <div class="form-group input-group-sm addon-position">
   <span class="star-red red-left">*</span>
   <label class="input-title">主贷人份额占比</label>
   <input type="text" class="form-control input-size10" >
   <i class="addon">元</i>
     </div>

.addon-position{
  position: relative;
}
.addon{
  position: absolute;
  z-index: 5;
  left:225px;
  color: $global-gray-light-color;
  font-size: 14px;
}