Syntax not commonly used in HTML standards but useful for SEO

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As we all know, for SEO, HTML standards can not be ignored, so that HTML semantics, so that search engine crawler better understand the content, is a future SEO research direction. Last night, I read the "Web Standard Combat", the first part of the "re-examination of HTML" wrote a small summary.

 H1 reasonable use of,<h1> to <h6> to express the title of 6 levels-importance from high to low, if you design the Web page, you think his default appearance is not good-looking, you can easily set the style you want through CSS. In accordance with the rules of the consortium, it is not a good practice to skip the title, because H1-h6 is like an outline to maintain a consistent sequence at all levels. <table> some of the tags are not commonly used in the:<caption> table title, <table summary= "Summary" > table summary,<th> header, <td headers= "" > The relationship between the header and the data, <th abbr= "" > Change the contents of the speech synthesizer to read,<thead> the table Head,<tfoot> the table body,<tbody>. The form is not a structure and is irreplaceable for some purposes, so don't try to use div instead of table. <blockquote> refers to the reference text, when referring to external text, as far as possible with the tag <lable> tag, used to mark the form control <dl><dt> to define the list, when building the submission form, you can use this syntax to replace <p> <table> <input tabindex=1> lets users use the keyboard to move the current focus of a form control <lable for= "name accesskey=" 9″>name: </lable><input type= "text" id= "name" name= "name", the user can switch focus to this input box by using the CTRL or ALT key plus the 9 keys we set in the code. Use <fieldset> to group the contents of the form in <form>, and when you add a descriptor <legent>, most browsers display a border around the grouped controls. <strong> and <em> are better than <b> and <i> because the first two are expressive, and then both are expressive. Em stressed, fervent said. The Html4.01 specification also defines the following phrase elements:<cite> contain reference information or reference notes to other sources;<dfn> the definition of the term is included. <code> named a computer program code.<samp> indicates the output of a program or script. <kdb> represents the text entered by the user. <var> represents an instance of a variable or program parameter. <abbr> represents a shorthand form, such as www. <acronym> means to take only initials, such as WAC. Better Anchor Point method


<p><a href= "#oranges" > About oranges </a></p>


... Text ...


<a id= "oranges" name= "oranges" > Oranges are delicious </a>


... More text ... Adding the title attribute to an anchor provides rich and unambiguous descriptive information for the target that the link points to. More lists, unordered lists using <ul><li>, ordered lists using <ol><li>, defining lists using <dl><dt> (entry) <dd> (interpreting), You can change their style by List-style-type in CSS, even custom, decimal, Upper-alpha, Lower-alpha lowercase, Upper-roman uppercase Roman numerals, Lower-roman lowercase Roman numerals, none not shown. Thin HTML: Use class to define styles; use CSS's # to define styles; Remove the necessary <div>;