滚动条下弹窗位置不变居中

<!DOCTYPE html>
<html>
	<head>
		<title>jQuery弹出框</title>
		<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
		<style>
			.div_back {
				display: none;
				position: fixed;
				z-index: 9998;
				top: 0;
				left: 0;
				width: 100%;
				height: 100%;
				background-color: #666666;
				opacity: 0.5;
				filter: alpha(opacity=50);
				-moz-opacity: 0.5;
			}

			.div_pop {
				display: none;
				position: fixed;
				z-index: 9999;
				background-color: #eafcd5;
				top: 30%;
				left: 42%;
				width: 200px;
				height: 80px;
				padding: 2px;
				border-radius: 10px;
				box-shadow: 0 0 10px #666;
				border: 2px solid #666666;
			}

			.div_title {
				font-size: 20px;
				padding: 2px;
				background-color: #978987;
			}

			.div_close {
				position: absolute;
				right: 5px;
			}
		</style>
		<script src="http://code.jquery.com/jquery-3.5.1.slim.min.js"></script>
		<script>
			function fnClose() {
				$("#div_back").hide();
				$("#div_pop").hide();
			}

			function fnOpen() {
				$("#div_back").show();
				$("#div_pop").show();
			}
		</script>
	</head>
	<body>
		<div id="div_back" class="div_back"></div>
		<div id="div_pop" class="div_pop">
			<div id="div_title" class="div_title">提示:
				<a id="" href="javascript:fnClose()" class="div_close">关闭</a>
			</div>
		</div>
		<p align="center">
			<input type="button" value="打开" onClick="fnOpen()" />
		</p>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<p align="center">
			<input type="button" value="打开" onClick="fnOpen()" />
		</p>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<h2>aaa</h2>
		<p align="center">
			<input type="button" value="打开" onClick="fnOpen()" />
		</p>
	</body>
</html>

你可以使用CSSJavaScript来创建一个带有滚动条弹窗。 首先,你需要创建一个HTML元素作为弹窗的容器,例如: ```html <div class="popup-container"> <div class="popup-content"> <!-- 弹窗内容 --> </div> </div> ``` 接下来,你需要使用CSS来设置弹窗容器的样式: ```css .popup-container { position: fixed; /* 固定位置 */ top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.5); /* 半透明背景 */ display: flex; justify-content: center; align-items: center; z-index: 9999; /* 设置层级 */ } .popup-content { max-width: 90%; /* 弹窗最大宽度 */ max-height: 90%; /* 弹窗最大高度 */ overflow-y: auto; /* 垂直滚动条 */ background-color: #fff; padding: 20px; border-radius: 5px; box-shadow: 0 0 10px rgba(0, 0, 0, 0.3); } ``` 最后,你需要使用JavaScript来控制弹窗的显示和隐藏: ```javascript const popupContainer = document.querySelector(&#39;.popup-container&#39;); const popupContent = document.querySelector(&#39;.popup-content&#39;); function showPopup() { popupContainer.style.display = &#39;flex&#39;; } function hidePopup() { popupContainer.style.display = &#39;none&#39;; } // 点击按钮显示弹窗 document.querySelector(&#39;.open-popup-btn&#39;).addEventListener(&#39;click&#39;, showPopup); // 点击弹窗外部或关闭按钮隐藏弹窗 popupContainer.addEventListener(&#39;click&#39;, (event) => { if (event.target === popupContainer) { hidePopup(); } }); document.querySelector(&#39;.close-popup-btn&#39;).addEventListener(&#39;click&#39;, hidePopup); ``` 这样,你就可以创建一个带有滚动条弹窗了。
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值