如果文档高度小于窗口高度，则将页脚强制到页面底部 [英] Forcing footer to bottom of page, if document height is smaller than window height

问题描述

我正在以ipad的肖像模式修复我的网站显示。问题是页面长度不像ipad的纵向显示那么长。这是我正在谈论的图片：

I'm working on fixing the display of my website in ipad's portrait mode. The issue is that the page length isn't as long as the ipad's portrait display. Here is a pic of what I'm talking about:

我创建了一个jQuery函数，我认为当文档高度没有窗口高度那么大时会检测到这个函数，然后我可以将页脚的位置设置为固定。这是我的代码：

I created a jQuery function that I thought would detect when the document height isn't as big as the window height, which then I could set the position of the footer to fixed. Here is my code:

if ($(document).height() < $(window).height()) {
    $('#footer-wrapper').attr('style', 'position: fixed!important; bottom: 0px;');
}

当前CSS：

#footer-wrapper {
    padding: 20px 0px 23px;
    background-color: #E3E9DC;
    border-bottom: 3px solid #007897;
    border-top: 3px solid #007897;
    color: #585858;
    position: absolute;
    bottom: 0px;
    left: 0px;
    width: 100%;
    text-align: center;
}

@media screen and (max-width: 1024px) {
    #footer-wrapper {
        /*padding: 20px 0px 23px;*/
        background-color: #E3E9DC;
        border-bottom: 3px solid #007897;
        border-top: 3px solid #007897;
        color: #585858;
        position: relative;
        margin-bottom: -65px!important;
        width: 100%;
        text-align: center;
    }
}

我认为这可行，但出于某种原因文档说它的高度大于窗口视口，因此不执行if语句。有没有人知道更可靠的实现方法？

I think this could work, but for some reason the document is saying that its height is bigger than the window viewport, so the if statement isn't executed. Does anyone know a more reliable way of achieving this?

推荐答案

只需将javascript更改为：

simply change javascript to:

if ($(document.body).height() < $(window).height()) {
  $('#footer-wrapper').attr('style', 'position: fixed!important; bottom: 0px;');
}

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