常规管理

                
            

            

            
        


 

            

                
                    
                    
常规管理

                
            

            

            
        

        
        

    

    

    
    #vertically-main-sidebar {
    position: absolute;
    width: 180px;
    overflow: hidden;
}

#v-m-scroll-wrap {
    width: 200px;
    background-color: #293038;
    overflow-x: hidden;
    overflow-y: auto;
}

获取vertically-main-sidebar宽度本应该是180, 但是无论是原生DOM还是jQuery, 一会儿180, 一会儿变成1335宽度.

jquery

$(document).ready(function () {
  // 页面除顶部导航外剩余高度
  var mainHeight =  windowHeight - 50;
  var mainHeightText = mainHeight + 'px';

  // 左侧主sidebar滚动高度设置
  var mainSideBarScroll =  $('#v-m-scroll-wrap');
  mainSideBarScroll.css('height', mainHeightText);

  // 左侧主sidebai
  var mainSideBar = $('#vertically-main-sidebar');

  //下面三个一直不一致
  console.log(windowWidth);
  console.log(mainSideBar.css('width'));
  console.log(document.getElementById('vertically-main-sidebar').offsetWidth);

});