我的滚动固定导航栏下拉菜单显示不正确

问题描述

我创建了一个导航栏，当您滚动它时，它一直停留在页面顶部，但是我的下拉菜单无法正常运行。下拉菜单确实会显示，但是主要内容随后会向下移动，并且下拉菜单内容跨越显示的宽度。我不得不再次编辑它，因为我的某些代码丢失了。...任何帮助将不胜感激。谢谢

        body {
            font-size: 28px;
              }

           ul {
               list-style-type: none;
               margin: 0;
               padding: 0;
                overflow: hidden;
               background-color: #333;
               position: -webkit-sticky; /* Safari */
               position: sticky;
               top: 0;
                  }

                    li {
                     float: left;
                         }

                li a,.dropbtn  {
                  display:  inline-block;
                  color: white;
                  text-align: center;
                    padding: 14px 16px;
                text-decoration: none;
                    }

                li a:hover,.dropdown:hover .dropbtn {
               background-color: #111;
                  }

                .active {
                   background-color: #4CAF50;
                        }
            li.dropdown {
                display: inline-block;
                      }

                  .dropdown-content {
                 display: none;
                 position: sticky;
                 background-color: #f9f9f9;
                  min-width: 160px;
                box-shadow: 0px 8px 16px 0px rgba(0,0.2);
                  z-index: 1;
                   }

                   .dropdown-content a {
                  color: black;
                  padding: 12px 16px;
                 text-decoration: none;
                 display: block;
                 text-align: left;
                      }

                .dropdown-content a:hover {background-color: #f1f1f1;}

                 .dropdown:hover .dropdown-content {
                   display: block;
                        }

            <!DOCTYPE html>
            <html>
            <head>

             </head>
             <body>

             <div class="header">
             <h2>Scroll Down</h2>
               <p>Scroll down to see the sticky effect.</p>
             </div>

             <ul>
              <li><a class="active" href="#home">Home</a></li>
              <li><a href="#news">News</a></li>
              <li><a href="#contact">Contact</a></li>
              <li class="dropdown">
               <a href="javascript:void(0)" class="dropbtn">Dropdown</a>
             <div class="dropdown-content">
               <a href="#">Link 1</a>
               <a href="#">Link 2</a>
               <a href="#">Link 3</a>
              </div>
              </li>
            </ul>

           <h3>Added text for scrolling</h3>
           <p>Some text to enable scrolling. Lorem ipsum dolor sit amet,illum definitiones no quo,maluisset concludaturque et eum,altera fabulas ut quo. Atqui causae gloriatur ius te,id agam 
           omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint efficiantur his ad. Eum 
           no molestiae voluptatibus.</p>
           <p>Some text to enable scrolling. Lorem ipsum dolor sit amet,id agam 
           omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint efficiantur his ad. Eum 
          no molestiae voluptatibus.</p>
         <p>Some text to enable scrolling. Lorem ipsum dolor sit amet,id agam 
         omnis evertitur eum. Affert laboramus repudiandae nec et. Inciderint efficiantur his ad. Eum no 
         molestiae voluptatibus.</p>
         <p>Some text to enable scrolling. Lorem ipsum dolor sit amet,id agam 
         omnis evertitur eum. 
         Affert laboramus repudiandae nec et. Inciderint efficiantur his ad. Eum no molestiae 
         voluptatibus. 
         </p>
 
         </body>
         </html>

解决方法

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nav scroll sticky