Lecture Notes 1--meta labels, table labels

Picture properties:
SRC (source): The source of the picture (path), can place the local picture, can also put the URL address of the picture on the net

Relative path:./: Current directory. /: Jump out of the current directory to the previous directory "

Title: Displays the text of the prompt when the mouse hovers over the image

Alt: Display prompt text when the file cannot be found

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Hyperlink: A

URL Address: The information in the browser address bar is the URL address, when entering the URL, should be added HTTP or HTTPS, if not write, the address as a local file.

Hyperlinks in addition to jumping URLs, you can also jump to a local file, if you are jumping to a local file, then the file path and the img tag inside the SRC attribute value is the same (relative path)

Title: Move the mouse to the text displayed on the link

Target
_self (default): Show jump files in this window
_blank: Open a new window to show the file to jump

Anchor Link (back to top): typically used to jump to a location on a page

1. Write the id attribute or the name attribute in the tag where you want to jump

Note: If you use name, the label for the location of the jump must be a label

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Properties inside the base tag:
HREF: When jumping is the address of the default jump of the empty link (href= "#"), if the href attribute is set in the base tag, the current path will be changed to the value of href. If the value in the A tag is a URL, jump to the URL directly.

Target: When all hyperlinks jump, whether to open a new window display

Jump to an empty link and set the href attribute value to #

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Form:

Cell Merging:
colspan: Horizontal Merge
RowSpan: Vertically merged

<table>

<caption></caption>
<thead>
<tr>
<th></th>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<tdrowspan= "2"></td>
<td></td>
<td></td>
<td></td>
</tr>

<tr>
<td></td>
<TD colspan= "2"></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>

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META Tags:
<!--Setting the author of the document--
<meta name= "Author" content= "Lu Xun" >

<!--Set the description of the page--
<meta name= "description" content= "This is a list of some of the show" >

<!--URL redirection: Http-equiv's property value is refresh content: The first is a jump to the URL every few seconds, and url= needs to jump to the URL--
<meta http-equiv= "Refresh" content= "3;url=https://www.baidu.com" >

<!--set keywords to let search engines search
<meta name= "keywords" content= "JS training, IT Training" >

SEO: Search engine Optimization: is to let the search engine (Baidu, Sogou) better search to the site you write.
1. Label semantics (so that you write a clear structure of the document, search engine easier to search for the URL you write)
2. It is best to set the title property for each picture, alt attribute
3. Set title for each a tag

Lecture Notes 1--meta labels, table labels