在HTML中，表格不应该用于布局，这似乎是普遍的观点。
Why?
我从来没有(老实说，很少)看到过支持这一点的有力论据。通常的答案是:
It's good to separate content from layoutBut this is a fallacious argument; Cliche Thinking. I guess it's true that using the table element for layout has little to do with tabular data. So what? Does my boss care? Do my users care?Perhaps me or my fellow developers who have to maintain a web page care... Is a table less maintainable? I think using a table is easier than using divs and CSS.By the way... why is using a div or a span good separation of content from layout and a table not? Getting a good layout with only divs often requires a lot of nested divs.
Readability of the codeI think it's the other way around. Most people understand HTML, few understand CSS.
It's better for SEO not to use tablesWhy? Can anybody show some evidence that it is? Or a statement from Google that tables are discouraged from an SEO perspective?
Tables are slower.An extra tbody element has to be inserted. This is peanuts for modern web browsers. Show me some benchmarks where the use of a table significantly slows down a page.
A layout overhaul is easier without tables, see css Zen Garden.Most web sites that need an upgrade need new content (HTML) as well. Scenarios where a new version of a web site only needs a new CSS file are not very likely. Zen Garden is a nice web site, but a bit theoretical. Not to mention its misuse of CSS.
我对使用divs + CSS而不是表的良好参数非常感兴趣。
一个例子:你想要居中
一个页面的主要内容区域，但在
为了把浮体装在里面，
它需要浮动。没有
CSS中的float: center。
这并不是在居中元素中“包含浮点数”的唯一方法。所以，这根本不是一个好的论点!
在某种程度上，“divs vs table”是一个错误的前提。
把一页快速地分成三列?说实话，表格更简单。但是没有专业人士将它们用于布局，因为它们将页面元素的位置锁定在页面中。
真正的争论是“由CSS完成的定位(最好是在远程文件中)”，而不是“在页面中由HTML完成的定位”。相对于后者，每个人都能看到前者的好处吗?
Size -- if your page layout is in the HTML, in the pages, it can't be cached, and it has to be repeated on every page. You will save enormous amounts of bandwidth if your layout is in a cached CSS file, not in the page.
Multiple developers can work on the same page at the same time -- I work on the HTML, other guy works on the CSS. No repository needed, no problems with over-writing, file locking etc.
Making changes is easier -- there will be problems with layout in different browsers, but you only have to fix one file, the CSS file, to sort them out.
Accessibility, as mentioned a lot previously. Tables assume a two-dimensional layout works for everyone. That's not how some users view your content and it's not how Google views your content.
考虑一下:
[ picture ] [ picture ] [ picture ]
[ caption ] [ caption ] [ caption ]
表示包含6个单元格的表中的两行。能看到二维表格布局的人会在每张图片下看到标题。但是使用语音合成，或者PDA，以及搜索引擎蜘蛛，那是
picture picture picture caption caption caption
有了表格，这种关系就明显消失了。
div和CSS是否更适合在HTML页面上简单地布局矩形以在最短的时间内实现给定的设计?不，他们可能不是。但我不是在快速布局矩形来实现给定的设计。我想的是更大的前景。
CSS/DIV - it's just jobs for the design boys, isn't it. The hundreds of hours I've spent debugging DIV/CSS issues, searching the Internet to get some part of markup working with an obscure browser - it drives me mad. You make one little change and the whole layout goes horrendously wrong - where on eath is the logic in that. Spending hours moving something 3 pixels this way then something else 2 pixels the other to get them all to line up. This just seems plain wrong to me somehow. Just because you're a purist and something is "not the right thing to do" doesn't mean you should make use of it to the nth degree and under all circumstances, especially if it makes your life 1000 times easier.
So I've finally decided, purely on commercial grounds, although I keep use to minimum, if I anticipate 20 hours work to get a DIV placed correctly, I'll stick in a table. It's wrong, it upsets the purists, but in most cases it costs less time and is cheaper to manage. I can then concentrate on getting the application working as the customer wants, rather than pleasing the purists. They do pay the bills after all and my argument to a manager enforcing the use of CSS/DIV - I would merely point out the customers pay his salary as well!
所有这些CSS/DIV争论出现的唯一原因是因为CSS的缺点，首先是因为浏览器之间不兼容，如果它们相互兼容，世界上一半的网页设计师将失业。
When you design a windows form you don't try moving controls around after you have laid them out so I kind of think it's strange to me why you would you want to do this with a web form. I simply can't understand this logic. Get the layout right to start with and what's the problem. I think it's because designers like to flirt with creativity, whilst application developers are more concerned with actually getting the application working, creating business objects, implementing business rules, working out how bits of customer data relates to each other, ensuring the thing meets the customers requirements - you know - like the real world stuff.
不要误解我的意思，这两种观点都是正确的，但是请不要因为开发人员选择了一种更简单、更合乎逻辑的方式来设计表单而批评他们。我们常常有比正确使用表而不是div的语义更重要的事情要担心。
在这个讨论的基础上，我将一些现有的tds和trs转换为div。花了45分钟把它弄得乱七八糟想把所有东西都排列整齐然后我就放弃了。td在10秒后回来-工作-立即-在所有浏览器上，没有更多的事情要做。请试着让我明白——你有什么理由让我用其他方式做这件事!
