Home >Web Front-end >HTML Tutorial >I have encountered some problems while learning HTML on the w3c website. Please help me solve them. _html/css_WEB-ITnose
I have encountered some problems while learning HTML on the w3c website. Please help me solve them. _html/css_WEB-ITnose
- WBOYOriginal
- 2016-06-24 12:09:541581browse
<a href="http://www.w3school.com.cn">W3School</a>href是哪个字的缩写？<td align="left">
Which English word does td stand for?
Attribute values should always be enclosed in quotes. Double quotes are the most commonly used, but there is no problem using single quotes. In some rare cases, such as when the attribute value itself contains double quotes, you must use single quotes. ??A passage in the w3c tutorial, then do you have to use double quotes when there are single quotes? What if there are both single and double quotes?
<html><body><code>Computer code</code><br><kbd>Keyboard input</kbd><br><tt>Teletype text</tt><br><samp>Sample text</samp><br><var>Computer variable</var><br><p><b>注释：</b>这些标签常用于显示计算机/编程代码。</p></body></html>
Examples in w3c tutorials, but still can’t understand what these computer codes are used for?
<bdo dir="rtl">Here is some Hebrew text</bdo>
What does bdo mean here?
e388a4556c0f65e1904146cc1a846bee
This is the email link:
3fcaee8669c314bebe44b82b2ea1ce67Send Email5db79b134e9f6b82c0b36e0489ee08ed
94b3e26ee717c64999d7867364b1b4a3
What does subject=Hello again mean?
e388a4556c0f65e1904146cc1a846bee
Here is another mailto link:
7a04584c99db860058185331697ec870Send email! 5db79b134e9f6b82c0b36e0489ee08ed
94b3e26ee717c64999d7867364b1b4a3
e388a4556c0f65e1904146cc1a846bee
a4b561c25d9afb9ac8dc4d70affff419Note: 0d36329ec37a2cc24d42c7229b69747a should be used to replace spaces between words so that the browser The text will be displayed correctly.
94b3e26ee717c64999d7867364b1b4a3
Can’t understand
Reply to discussion (solution)
It doesn’t make much sense to study this. Just know how to use it
1. href should be the abbreviation of Hyperlink Reference.
2. td should be the abbreviation of table data.
3. If the attribute value itself has quotation marks, it must be wrapped in different quotation marks outside. For example, 55a4d1a8eee18c6044505dc9ac7b49e6 or f011f7bc0acf7a8a779df628914e110c.
4. ffbe95d20f3893062224282accb13e8f, 5e4e803d53d659f332070b5d4aa430db, 162cd570ab1483e383d78dcb7f452f7c, b7f90f73cad438258bf67e62f79b2113, etc. are tags with exact semantics. In fact, they are completely equivalent to the e388a4556c0f65e1904146cc1a846bee tag in xhml, while 0c6dc11e160d3b678d68754cc175188a It is a newline character, which is no longer recommended in xhml.
5. 71af07a0e88a1ac1ff73f855702ac153 defines the text display direction, dir="rtl" means that the text is displayed from right to left.
6. subject=Hello again is a parameter appended to the end of the address, which is used to transfer relevant values to the server. This part of the content no longer belongs to html technology, but to server technology.
Still not sure what computer code is used for. What specific effect does code kbd samp var achieve?
W3Cschool said that " should be used to replace the spaces between words, so that the browser can display the text correctly", but I did not use the spaces directly, and the email title showed the same. Why?
I’m a newbie just learning html, please give me some advice!