77 lines
1.8 KiB
HTML
77 lines
1.8 KiB
HTML
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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<meta name="author" content="flykhan" />
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<meta name="keywords" content="c c++ 物联网" />
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<title>回到顶部</title>
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<style>
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.panel {
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height: 400px;
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background-color: skyblue;
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margin: 10px 100px;
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border-radius: 20px;
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text-align: center;
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line-height: 400px;
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}
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.topBtn {
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display: none;
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width: 50px;
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height: 50px;
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line-height: 50px;
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border-radius: 50%;
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padding: 10px;
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border: 1px solid lightgray;
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text-align: center;
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cursor: pointer;
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user-select: none;
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}
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.topBtn:hover {
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background-color: lightsalmon;
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}
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.topBtn:active {
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background-color: lightgreen;
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}
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#rightBtns {
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position: fixed;
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right: 10px;
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bottom: 100px;
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}
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</style>
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</head>
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<!-- 页面滚动 -->
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<body onscroll="pageScoll(event)">
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<!-- 右边按钮组，悬浮在右边 -->
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<div id="rightBtns">
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<span class="topBtn">到顶</span>
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</div>
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<div id="d1" class="panel">aBc</div>
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<div id="d2" class="panel">aBc</div>
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<div id="d3" class="panel">aBc</div>
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<div id="d4" class="panel">aBc</div>
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<div id="d5" class="panel">aBc</div>
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<div id="d6" class="panel">aBc</div>
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<script>
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function pageScoll() {
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// 获取滚动条的位置
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let scrollTop = document.documentElement.scrollTop;
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if (scrollTop > 500) {
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// topBtn.style.display = "online-block";
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.style.display =
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"online-block";
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}
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}
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function backTop()
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{
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document.documentElement.scrollTo(0,0);
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}
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</script>
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</body>
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</html>
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