我有以下 HTML、CSS 和 Javascript:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
<script type="text/javascript">
function getTarget(event){
target = (typeof window.event === "undefined")?event.target:window.event.srcElement;
return target;
}
document.onclick = function(event){
var target = getTarget(event);
if(target.id == ""){
var overlay = document.getElementById('overlay');
var specialBox = document.getElementById('specialBox');
var button = document.getElementById('qualityButton');
overlay.style.display = "none";
specialBox.style.display = "none";
button.style.color="#000000";
}
}
function toggleOverlay(){
var overlay = document.getElementById('overlay');
var specialBox = document.getElementById('specialBox');
var button = document.getElementById('qualityButton');
overlay.style.opacity = .7;
if(overlay.style.display == "block"){
overlay.style.display = "none";
specialBox.style.display = "none";
button.style.color="#000000";
} else {
overlay.style.display = "block";
specialBox.style.display = "block";
button.style.color="#ff0000";
}
}
</script>
<style type="text/css">
div#overlay {
display: none;
z-index: 2;
background: #A9A9A9;
position: fixed;
width: 879px;
height: 291px;
top: 50px;
left: 0px;
text-align: center;
}
div#specialBox {
display: none;
position: fixed;
z-index: 3;
width: 719px;
height: 215px;
top: 88px;
left: 80px;
background: #FFF;
}
div#wrapper {
position:absolute;
top: 0px;
left: 0px;
padding-left: 24px;
}
</style>
<style type="text/css">
.btn {
cursor:pointer;
font-size:24px;
border:none;
color:#000
}
.btn:hover{
color:#F00;
}
</style>
<style type="text/css">
.x {
background-color:white;
cursor:pointer;
font:Arial;
font-size:14px;
color:red;
z-index: 4;
position: fixed;
top: 92px;
left: 766px;
}
</style>
</head>
<body>
<!-- Start Overlay -->
<div id="overlay"></div>
<!-- End Overlay -->
<!-- Start Special Centered Box -->
<div id="specialBox">
<button class="x" onmousedown="toggleOverlay()">X</button>
</div>
<!-- Start Special Centered Box -->
<!-- Start Normal Page Content -->
<div id="wrapper">
<button id="qualityButton" class="btn" onmousedown="toggleOverlay()">HIGHEST QUALITY</button>
</div>
<!-- End Normal Page Content -->
</div>
</body>
</html>
叠加层打开和关闭都很好。但是，如果打开叠加层并且用户访问网站上的另一个页面，然后返回到叠加层所在的原始页面，则叠加层仍保持打开状态......有没有办法在刷新页面时关闭叠加层并返回访问过另一个页面后？
非常感谢任何帮助:)
詹姆斯
最佳答案
尝试对要在刷新时隐藏的 div 使用 display none
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
<script type="text/javascript">
function getTarget(event){
target = (typeof window.event === "undefined")?event.target:window.event.srcElement;
return target;
}
document.onclick = function(event){
var target = getTarget(event);
if(target.id == ""){
var overlay = document.getElementById('overlay');
var specialBox = document.getElementById('specialBox');
var button = document.getElementById('qualityButton');
overlay.style.display = "none";
specialBox.style.display = "none";
button.style.color="#000000";
}
}
function toggleOverlay(){
var overlay = document.getElementById('overlay');
var specialBox = document.getElementById('specialBox');
var button = document.getElementById('qualityButton');
overlay.style.opacity = .7;
if(overlay.style.display == "block"){
overlay.style.display = "none";
specialBox.style.display = "none";
button.style.color="#000000";
} else {
overlay.style.display = "block";
specialBox.style.display = "block";
button.style.color="#ff0000";
}
}
</script>
<style type="text/css">
div#overlay {
display: none;
z-index: 2;
background: #A9A9A9;
position: fixed;
width: 879px;
height: 291px;
top: 50px;
left: 0px;
text-align: center;
}
div#specialBox {
display: none;
position: fixed;
z-index: 3;
width: 719px;
height: 215px;
top: 88px;
left: 80px;
background: #FFF;
}
div#wrapper {
position:absolute;
top: 0px;
left: 0px;
padding-left: 24px;
}
</style>
<style type="text/css">
.btn {
cursor:pointer;
font-size:24px;
border:none;
color:#000
}
.btn:hover{
color:#F00;
}
</style>
<style type="text/css">
.x {
background-color:white;
cursor:pointer;
font:Arial;
font-size:14px;
color:red;
z-index: 4;
position: fixed;
top: 92px;
left: 766px;
}
</style>
</head>
<body>
<!-- Start Overlay -->
<div id="overlay" style="display: none"></div>
<!-- End Overlay -->
<!-- Start Special Centered Box -->
<div id="specialBox">
<button class="x" onmousedown="toggleOverlay()">X</button>
</div>
<!-- Start Special Centered Box -->
<!-- Start Normal Page Content -->
<div id="wrapper">
<button id="qualityButton" class="btn" onmousedown="toggleOverlay()">HIGHEST QUALITY</button>
</div>
<!-- End Normal Page Content -->
</div>
</body>
</html>
关于javascript - 在页面刷新/重新访问时关闭覆盖，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/23883467/