我开发这个网站已经有一段时间了，今天突然我注意到浏览器上的水平滚动条正在显示，并且允许网站向右滚动几英寸，所有这些都仅由空白组成。
它在几个页面上执行此操作，但不是全部。
这是我遇到问题的页面 - http://www.princewebdesigns。 com/staging/gallais/our-firm.html
这是一个我没有遇到问题的页面 - http://www.princewebdesigns.com/staging/gallais/index.html
我尝试过在 FireBug 中进行调试，但找不到任何导致页面出现错误的 div 或元素更宽。这可能与浮动有关吗？这似乎是所有浏览器中的一个问题。
任何帮助将不胜感激。
PS - 我知道导航链接不起作用，这是因为我暂时将该网站存放在我的网络服务器的暂存目录中。
I've been developing this site for a while and suddenly today I noticed that the horizontal scrollbar on my browser was showing and was allowing the site to be scrolled a few inches to the right, all of which consists solely of whitespace.
It's doing this on several pages, but not all.
Here is a page on which I have the issue - http://www.princewebdesigns.com/staging/gallais/our-firm.html
Here is a page on which I do not have the issue - http://www.princewebdesigns.com/staging/gallais/index.html
I've tried debugging in FireBug but I can't find any divs or elements that are causing the page to be wider. Is it possibly related to a float? It appears to be an issue in all browsers.
Any help would be appreciated.
PS - I know the nav links are not functioning, it's because I'm temporarily housing the site in my web server's staging directory.
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css 类
.bluebar h1有一个属性width: 70em;em 不应用于定义元素的宽度。您的浏览器将 h1 计算为 28 像素的字体大小，这使得 .bluebar 的宽度为 28 x 70 = 1960 像素。有关 em 和其他 css 单元的正确解释，请参阅 w3schools
Firebug 和 Dragonfly 都允许您悬停页面。这是 Dragonfly 中的默认行为。在 Firebug 中，您可以通过单击 Firebug 窗口左上角的箭头按钮来打开它。这样你就可以很快地找到元素。
css class
.bluebar h1has a propertywidth: 70em;em should not be used to define width of elements. Your browser calculates the h1 to a font-size of 28px, which makes the .bluebar 28 x 70 = 1960px wide. For a proper explenation on em and other css units, see w3schools
Both Firebug and Dragonfly allow you to hover the page. This is default behaviour in Dragonfly . In Firebug you can turn it on by clicking the arrow button on the top left of the firebug window. This way you can find the elements quite fast.
问题是这样的：
如果你将其更改为
那么它就可以正常工作（但显然你现在有了背景图形。经过进一步检查，我发现了这一点。 ..哦等等...没有必要在这里重复答案！编辑：好的，我花了太长时间回答这个问题 - 哈哈！
The problem is this bit:
If you change that to be
<div class="banner">then it works okay (but obviously you now have the background graphics. On further inspection I see that... oh hang on... no point in duplicating the answer here!EDIT: Okay, I took too long answering this - lol! Give Benjamin the answer credit.