需要认识的属性
代码
<!DOCTYPE html> <html> <head> <meta charset="utf8"> <title>js拖拽效果</title> <script src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"> </script> </head> <body> <div style=" 1000px;height: 1000px;background-color: pink"> 111111 <button onclick="showWindow()">点击显示弹框</button> </div> <!-- 遮罩层 --> <div id="cover" style="background: #000; position: absolute; left: 0px; top: 0px; 100%; filter: alpha(opacity=30); opacity: 0.3; display: none; z-index: 2 "> </div> <!-- 弹窗 --> <div id="showdiv" style=" 80%; margin: 0 auto; height: 9.5rem; border: 1px solid #999; display: none; position: absolute; top: 40%; left: 10%; z-index: 3; background: #fff"> <!-- 标题 --> <div style="background: #F8F7F7; 100%; height: 2rem; font-size: 0.65rem; line-height: 2rem; border: 1px solid #999; text-align: center;"> 提示 </div> <!-- 内容 --> <div style="text-indent: 50px; height: 4rem; font-size: 0.5rem; padding: 0.5rem; line-height: 1rem; "> js弹窗 js弹出DIV,并使整个页面背景变暗 </div> <!-- 按钮 --> <div style="background: #418BCA; 80%; margin: 0 auto; height: 1.5rem; line-height: 1.5rem; text-align: center;color: #fff;margin-top: 1rem; -moz-border-radius: .128rem; -webkit-border-radius: .128rem; border-radius: .128rem;font-size: .59733rem;" onclick="closeWindow()"> 确 定 </div> </div> </body> <script type="text/javascript"> // 弹窗 function showWindow() { $('#showdiv').show(); //显示弹窗 $('#cover').css('display', 'block'); //显示遮罩层 $('#cover').css('height', document.body.clientHeight + 'px'); //设置遮罩层的高度为当前页面高度 } // 关闭弹窗 function closeWindow() { $('#showdiv').hide(); //隐藏弹窗 $('#cover').css('display', 'none'); //显示遮罩层 } </script> </html>