Depending on what you're trying to do, this can cause problems. As a very best-case scenario you will have a DOM that is out of sync with your code, making it potentially confusing and harder to debug.
It's fine to omit tbody and thead when you aren't planning on manipulating the DOM with javascript, and if your CSS is designed to take this into account in an overwhelming majority of cases the presence of that extra element in there doesn't change anything. According to this page, as of posting this, using tbody is suggested by the HTML standard, "even though these [ tr ] elements are technically allowed inside table elements according to the content models described in this specification" :D.
From an accessibility point of view, tbody , tfoot and thead provide no accessibility functionality. In short, if I remember the article I read correctly, the answer is "No". They are not required by the standard. Allowing more style adjustments, such as fixed header and scroll-able body. Two porpuses of HTML5 was the good implementation and proper use of markup to make a programmatic association between elements , and the second was the making of more accessible web pages.
Someone that cannot see the table cannot make these visual associations, so proper markup must be used to make a programmatic association between elements within the table. When the proper HTML markup is in place, users of screen readers can navigate through data tables one cell at a time, and they will hear the column and row headers spoken to them.
A screen reader software will work with this two tags. Creating Accessible Tables. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Is it required to use thead, tbody and tfoot tags? Ask Question. Asked 6 years, 8 months ago.
Active 1 year, 9 months ago. Viewed 14k times. Improve this question. FrozenHeart FrozenHeart Add a comment. Active Oldest Votes. Improve this answer. They're not required but I give an example in my answer of where you can run into problems when you omit them, notably, if you manipulate the DOM using Javascript, it can lead to some unintuitive behaviors that are hard to debug because the DOM is different from the HTML you wrote.
Typical values for this include a period. If align is not set to char , this attribute is ignored. This attribute is used to indicate the number of characters to offset the column data from the alignment characters specified by the char attribute. This attribute specifies the vertical alignment of the text within each row of cells of the table footer. Possible values for this attribute are:. Note: Do not use this attribute as it is obsolete and not supported in the latest standard: instead set the CSS vertical-align property on it.
Content categories None. Tag omission The start tag is mandatory. As a child of a table element , after any caption , colgroup , and thead elements, but only if there are no tbody elements that are children of the table element. In the end, the browser will always add at least the tbody for you. Modern browsers will add these by default. Tags: Html Html Table. How to reply with from Nginx, without serving a file?
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