#beiJ { width:100%; height:100%; background:#000; opacity:0.7; position:fixed; top:0; left:0; } #tanChuang { width:800px; height:400px; position:fixed; top:50%; left:50%; margin:-200px 0 0 -400px; background:#222; box-shadow:0px 0px 20px #111; color:#fff; } #jiShi { width:180px; height:180px; border:10px solid #fff; border-radius:50%; margin:100px auto; font-size:150px; font-weight:bold; font-family:"arial"; text-align:center; line-height:180px; position:absolute; top:0%; left:calc(50% - 100px); } #tanChuang img { width:100%; height:100%; } #tanChuang span { width:40px; height:40px; font-size:40px; position:absolute; top:0; right:0; cursor:pointer }
javascript倒计时弹窗,5秒后自动关闭,也可以动关闭。计时秒修改JS中的i。弹窗的图片,把HTML中的图片换掉