方法步骤:
①使用css将footer设置到底部;
②使用css响应式当高度小于多少时,不显示。

对应的footer代码如下:
- <footer id="myFooter" class="text-white" id="myFooter">
- 	<ul class="nav justify-content-center mb-3">
- 		<li class="nav-item"><a href="#" class="nav-link px-2 text-white">新时代程序员群</a></li>
- 		<li class="nav-item"><a href="#" class="nav-link px-2 text-white">联系站长</a></li>
- 		<li class="nav-item"><a href="#" class="nav-link px-2 text-white">大屏展示站点</a></li>
- 		<li class="nav-item"><a href="#" class="nav-link px-2 text-white">CSDN IT1995</a></li>
- 		<li class="nav-item"><a href="#" class="nav-link px-2 text-white">About me</a></li>
- 	</ul>
- 	<p class="text-center text-white">Designed by IT1995</p>
- </footer>
css如下:
- #myFooter{
-     position:absolute;
-     bottom:0;
-     width:100%;
-     height:100px;
-     background-color: transparent;
- }
-  
- @media screen and (max-height: 768px){
-  
-     #myFooter{
-  
-         display: none;
-     }
- }
这里其他的css都是使用的是bootstrap
如:
- .text-white {
-   --bs-text-opacity: 1;
-   color: rgba(var(--bs-white-rgb), var(--bs-text-opacity)) !important;
- }
-  
- .nav {
-   display: flex;
-   flex-wrap: wrap;
-   padding-left: 0;
-   margin-bottom: 0;
-   list-style: none;
- }
-  
- .justify-content-center {
-   justify-content: center !important;
- }
-  
- .px-2 {
-   padding-right: 0.5rem !important;
-   padding-left: 0.5rem !important;
- }

 
                
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