<div class="s2" ng-init="InitTooltip()">
  <input type="text" ng-pattern="/^(http|https|ftp)\://[a-zA-Z0-9\.\,\?\'\\/\+&amp;%\$\#\=~:_\-\s@]+$/" class="inputwords" id="txtExamination" name="txtExamination" ng-model="csInfo.ExamUrl" placeholder="測驗地址">
  <span data-toggle="tooltip" data-placement="top" data-html="true" title="1、點擊《新建測驗》按鈕 <br/> 2、測驗創(chuàng)建完成后，點擊頁面右上角《共享》按鈕>點擊《復(fù)制》按鈕 <br/> 3、把復(fù)制的url粘貼到此處即可" style="cursor: pointer;">
   <i class="fa fa-question-circle-o examSpan"></i>
  </span>
  <span style="margin-left: 88px; width: 8px;"> <a target="_blank" >創(chuàng)建測驗</a></span>
</div>

    $scope.InitTooltip = function() {
      //初始化tips提示控件
      $("[data-toggle='tooltip']").tooltip();
    };

/**控制彈出層顏色和大小*/
.tooltip-inner {
  background: #fafafa !important;
  text-align: left !important;
  color: #363636 !important;
  border: 1px solid #dedede;
  max-width: 400px !important;
  padding: 4px;
}

/**控制小三角透明度*/
.tooltip-arrow{
  border-bottom-color: #ffffff !important;
  opacity: 0.3;
}