Common HTML markup errors_HTML/Xhtml_Web page production

We better start paying attention, because HTML Police will go through your code and pick out all your tags that have no semantics. This list contains the 10 most common HTML tag mistakes. Take note of them. , allows us to avoid making this common mistake and make our HTML tags comply with semantics and standard requirements.

Crime 1: Putting block-level elements inside inline elements

HTML elements can be expressed in two ways: block level and inner linked . Each tag has a default expression mode, either block level or inner. Links. Like div and p are block-level elements, which are used to form the document structure. Inner link elements can only be inside block-level elements.

Crime 2: img tag does not contain alt attribute

The alt attribute is a must attribute for all Common HTML markup errors_HTML/Xhtml_Web page productions displayed on web pages. It can help people know what kind of Common HTML markup errors_HTML/Xhtml_Web page production it is. Or what the meaning of the Common HTML markup errors_HTML/Xhtml_Web page production is when the network speed is relatively slow. Its main purpose is, To explain the meaning of the picture, it is very bad to write alt="Common HTML markup errors_HTML/Xhtml_Web page production" like this. If some pictures are really just for decoration, then it is recommended that you write alt="".

Crime 3: Not using list when necessary

Crime 4: Using and to display bold and italics

You can use css styles to define font-weight and font-style. If you must write tags on the page, replace them with or tags. There is no semantics at all, but for a simpler page, choose css to define the style

Crime 5: Using too much

The newline mark should only be used to insert a special word that is a newline in the first text stream. It should not be used to create gaps between elements, but to split text into different paragraphs, or to adjust the amplitude of CSS styles.

Crime 6: Using the wrong Strikethrough tag

In the old days, and were allowed to be used to define website text. However, they are now defined as deprecated tags, while they can still have effect. Now with a new set of tags - and . to replace

Crime 7: Using inline styles

The most important purpose of css is to distinguish documents and styles. If you write the style into the page, then there will be no role of css at all. So, remember to put your style where it should be seat

Crime 8: Adding borders to HTML

Crime 9: Not using header tags

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Crime 10: Unsemantic or

Not recommended by w3, the and (blink, scroll) tags are just plain ugly.

Don’t use this tag. If you must use this effect, I believe you will have other better effects

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