Ask for advice! ! ! How to interpret the table header element in this code? Does the number of thead rows default to two rows? _html/css_WEB-ITnose

                                                                                           ;/td>
                                                         < > I would like to ask this code & lt; thead & gt; & lt;!--why the annotation in the first two lines in the head area-& gt; The default number of rows is two? Or is it for some other reason?
Also, does scope="col" mean to lock the scope in the column? What's the point of doing this?


Reply to discussion (solution)

This should be combined with rowspan="2", thead simply represents the table header

HTML tag

Definition and usage

tag defines the header of the table. This tag is used to combine the header content of HTML tables.

Thead element should be used in conjunction with tbody and tfoot elements.

The tbody element is used to group the main content in the HTML table, while the tfoot element is used to group the table note (footer) content in the HTML table.

Note: If you use thead, tfoot and tbody elements, you must use all of them. They appear in the order: thead, tfoot, tbody, so that the browser can render the footer before receiving all the data. You must use these tags inside a table element.

Tip: By default these elements do not affect the layout of the table. However, you can use CSS to make these elements change the appearance of the table.

Detailed Description

Thead, tfoot and tbody elements give you the ability to group rows in a table. When you create a table, you probably want to have a header row, some rows with data, and a total row at the bottom. This division gives the browser the ability to support table body scrolling independent of table headers and footers. When long tables are printed, the table header and footer can be printed on each page that contains the table data.

Example

HTML table with thead, tbody and tfoot elements:

                                                        >
                                                               🎜> < /tfoot>

                                                                       🎜> < /tr>
                                                        

This should be combined with rowspan="2", thead simply represents the table header


HTML tag

Definition and usage

tag defines the header of the table. This tag is used to combine the header content of HTML tables.

Thead element should be used in conjunction with tbody and tfoot elements.

The tbody element is used to group the main content in the HTML table, while the tfoot element is used to group the HTM...
1

Two rows are regarded as the head area-->
                                                                                                         ;/td>
                                                                        " colspan="2"......

The structure is clearer and standardized, and it is convenient to use css style control. There is no need to add a class or ID

Just use css to control the tags directly

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