fix many bugs

css/styles.css

@@ -64,7 +64,8 @@ body {
     font-size: 16px;
     padding: 5px 10px;
     transition: color 0.3s ease;
-    position: relative; /* 添加相对定位 */  
+    position: relative;
+    /* 添加相对定位 */
     display: flex;
     gap: 35px;
 }
@@ -74,7 +75,7 @@ body {
     color: #0091EA;
 }
 
-.line{
+.line {
     position: absolute;
     left: 16px;
     bottom: 0;
@@ -193,6 +194,34 @@ button {
     padding: 20px 50px;
 }
 
+.news-elevator {
+    width: 50px;
+    height: 200px;
+    position: fixed;
+    right: 100px;
+    bottom: 100px;
+}
+
+.news-elevator-list {
+    list-style: none;
+    text-decoration: none;
+    padding: 0;
+}
+
+.news-elevator-list li {
+    background-color: lightgray;
+    margin-bottom: 5px;
+    border-radius: 5px;
+    width: 50px;
+    height: 50px;
+    font-size: 18px;
+    text-align: center;
+}
+
+.news-elevator-list a {
+    text-decoration: none;
+}
+
 .footer {
     width: 100%;
     background-color: #3FA8EA;

index.html

@@ -56,8 +56,8 @@
     </div>
     <div class="news-elevator">
         <ul class="news-elevator-list">
-            <li><a href="#"></a>新鲜好物</li>
+            <li><a href="#">新鲜好物</a></li>
-            <li><a href="#"></a>人气推荐</li>
+            <li><a href="#">人气推荐</a></li>
             <li><a href="#">热门品牌</a></li>
             <li><a href="#">最新专题</a></li>
             <li><a href="#">顶部</a></li>
@@ -157,7 +157,7 @@
         const elevator = document.querySelector('.news-elevator')
         window.addEventListener('scroll',function(){
             const n = document.documentElement.scrollTop
-            if (n >=300){
+            if (n >=500){
                 elevator.style.opacity = 1
             }else{
                 elevator.style.opacity = 0