Generally speaking, that's what I learned today.
Browser is used to execute code
extensions tell the operating system what program to open the file with
HTML (Hyper Text Markup Language, or "HTML") is an interpreted language, for the production of a web interface, using the language of the web browser is finally interpreted.
To label the beginning / end of the comment
<html > </html > // <!--这是文档-->
<head> </head> <!--这是文档的头部-->
<body> </body> <!--这是文档的主体-->
Single tag <tag name attribute name 1 = "attribute value 1" attribute name 2 = "attribute value 2" ... attribute name N = "attribute value N" />
ditag recommended lowercase <1 = "attribute value of the tag name attribute name 1 "attribute name 2 =" attribute value 2 "... attribute name N =" attribute value N "> SUMMARY </ tag name>
special symbol
tag (Learn) high speed browser what encoding execution code encoding format for the default format consistent with
form
ditag outermost table then tr (table rows row) column TD
Properties
border is not recommended to add border CSS style attribute table and td achieve
width the width of the table is not recommended to add width CSS style attribute
<style>
table{ <!--边框的像素内边距 固体的实线的 颜色 -->
border : 1px solid black
}
</style>