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我在这里有一个网站。

当您打开网站时,2 秒后,您会在背景中看到一些文字。这是 JavaScript 弹出窗口的一部分。我试图让它保持在其他一切之上。当有人到达该站点时,它会自动出现。它只是显示我对网站所做的更新。

如您所见,它显然不在顶部。这是一个表格弹出窗口。没有我可以应用的 z-index。我试过但没有奏效的一件事是。

<body onblur="self.focus();">

我的 jQuery 有碍事吗?

4

2 回答 2

1

最终做了一些基于 CSS 的事情......

CSS...

/*STYLES FOR CSS POPUP*/


#blanket {
   background-color:#111;
   opacity: 0.65;
   filter: alpha(opacity=65)
   *background:none;
   position:absolute;
   z-index: 9001;
   top:0px;
   left:0px;
   width:100%;
}

#popUpDiv {
    position:absolute;
    background-image:url(images/background_img.png);
    background-repeat:no-repeat;    
    width:400px;
    height:400px;
    margin-top: -200px; /* auto, centers horizontally and -120px is half your height to finish the centering vertically */
    border:5px solid #000;
    z-index: 9002;
}


#popUpDiv .close {
    background-image: url(images/x.png); 
    background-repeat: no-repeat;
    position:absolute; 
    top:10px; 
    right:10px
}

HTML...

<body onload="popup('popUpDiv')">

<div id="blanket" style="display:none"></div>
<div id="popUpDiv" style="display:none">

<a href="#" onclick="popup('popUpDiv')" class="close"><img src="images/x.png" /></a>
        <br />
    <h3 style="color: #FFF; padding-left: 10px;">Updates to the AR Toolbox</h3>
            <br />
                <br />
                <div style="width: 350px; height: 300px; text-align: left;">
                <p style="padding-left: 50px; color: #000;">• Check out some content here...</p>
                    <br />
                <p style="padding-left: 50px; color: #000;">• Check out some content here...</p>                
                    <br />
                <p style="padding-left: 50px; color: #000;">• Check out some content here...</p>
                    <br />
        </div>
</div>



<body onunload="javascript: exitpop()" >

JavaScript...

function toggle(div_id) {
    var el = document.getElementById(div_id);
    if ( el.style.display == 'none' ) { el.style.display = 'block';}
    else {el.style.display = 'none';}
}

function blanket_size(popUpDivVar) {
    if (typeof window.innerWidth != 'undefined') {
        viewportheight = window.innerHeight;
    } else {
        viewportheight = document.documentElement.clientHeight;
    }
    if ((viewportheight > document.body.parentNode.scrollHeight) && (viewportheight > document.body.parentNode.clientHeight)) {
        blanket_height = viewportheight;
    } else {
        if (document.body.parentNode.clientHeight > document.body.parentNode.scrollHeight) {
            blanket_height = document.body.parentNode.clientHeight;
        } else {
            blanket_height = document.body.parentNode.scrollHeight;
        }
    }
    var blanket = document.getElementById('blanket');
    blanket.style.height = blanket_height + 'px';
    var popUpDiv = document.getElementById(popUpDivVar);
    popUpDiv_height=blanket_height/2-200;//200 is half popup's height
    popUpDiv.style.top = popUpDiv_height + 'px';
}
function window_pos(popUpDivVar) {
    if (typeof window.innerWidth != 'undefined') {
        viewportwidth = window.innerHeight;
    } else {
        viewportwidth = document.documentElement.clientHeight;
    }
    if ((viewportwidth > document.body.parentNode.scrollWidth) && (viewportwidth > document.body.parentNode.clientWidth)) {
        window_width = viewportwidth;
    } else {
        if (document.body.parentNode.clientWidth > document.body.parentNode.scrollWidth) {
            window_width = document.body.parentNode.clientWidth;
        } else {
            window_width = document.body.parentNode.scrollWidth;
        }
    }
    var popUpDiv = document.getElementById(popUpDivVar);
    window_width=window_width/2-200;//200 is half popup's width
    popUpDiv.style.left = window_width + 'px';
}
function popup(windowname) {
    blanket_size(windowname);
    window_pos(windowname);
    toggle('blanket');
    toggle(windowname);     

}

正确插入所有这些代码后,每次用户重新刷新页面时,您都会在页面(onload)上获得居中的弹出窗口。HTML 内容可以放置在弹出窗口中,这将增加更多可用性。

这是一个jsfiddle(我已经在 jsfiddle 中添加了图像以供查看。将它们更改出来,你就可以开始了)。

于 2013-07-11T15:54:05.160 回答
0

你为什么不使用像fancybox这样的插件?

http://fancybox.net/

于 2013-07-11T16:05:34.280 回答