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This article mainly explains "what is the html5 double tag". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "what is html5 double tag"?

Double label

1. It means "paragraph". A line will be left empty after the paragraph.

2, tag, this tag has no semantics, its function is to set a separate style.

3. In the tag, this tag is equivalent to a container.

4. The label is used to define the area of the head.

5. The label is used to define the bottom area.

6. Label, define an area.

7. Label to define a sidebar area.

8. Ul-li tag

A ul-li is an unordered list of information. Such as news list, picture list. (the default style displayed by ul-li on a web page is generally: each li item is preceded by a dot. )

9. Ol-li tag

An ol-li is a list of information in order. Such as the ranking list. (the default style displayed by ol-li on a web page is generally: each li item is preceded by a serial number, which starts with 1 by default.)

10. Form label

Create four elements of the table: table, tr, th, td

1) the whole table begins with a tag and ends with a tag.

2),: a row of the table, so there are several rows for every pair of tr tables.

3) A cell in a table that contains several pairs of td in a row, indicating that there are several columns in a row, that is, the number of columns.

4),: a cell in the header of the table (the text is bold and centered by default).

5) the number of columns in the table depends on the number of data cells in a row.

6) the border attribute can add a border to the table, and the attribute value is a number.

7) the caption tag is used to define the title of the table.

It can also be replaced by, and this division gives browsers the ability to support table body scrolling independent of the table title and footer.

11. Hyperlinks can be realized

Example function: click the text "click here!"

The page links to the "" page.

1), title attribute, the text content of this property will be displayed when you mouse over the linked text.

2), target attribute, which represents the way to open the web page. Optional values are "_ self and _ blank", the default value is _ self, which means to open the link in the current page, and _ blank means to open the link in a new window.

12. Form label

All form controls (text boxes, text fields, buttons, radio boxes, check boxes, etc.) must be placed between labels (otherwise the information entered by the user will not be submitted to the server! ).

Example:

Note:

1. Action: the place where the data entered by the viewer is transferred, such as a PHP page (save.php).

2. Method: the way of data transmission (get/post).

13. Text field label

Note:

1) cols: the number of columns in the multi-line input field.

2) rows: the number of rows in the multi-line input field.

3) you can enter default values between tags.

13. Create a drop-down menu with select and option tags

Only the option tag can be placed in the select tag, which indicates the option of the drop-down list. The option tag places the content of the option and no other tags. Set the = = selected= "selected" = property, then this option is selected by default.

At this point, I believe you have a deeper understanding of "what the html5 double tag is". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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