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<>Wed Standard three swordsman ：HTML CSS JavaScript
HTML
HTML（Hypertext Markup
Language） Is a hypertext markup language . It is a markup language , Not a programming language .HTML yes Web Structure of the page .HTML Use tags to describe Web pages . The content of the web page includes the title , Subtitle , paragraph , Unordered list , Definition list , form , Single table, etc .
HTML Documents are used to describe Web pages , from HTML A text file consisting of markup and plain text .Web Browser can read HTNL file , And display them as web pages .
CSS
CSS Role of
Cascading style sheets （Cascading Style
Sheet,CSS）, Also known as cascading style sheets . In design Web Web page CSS technology , Can effectively control the layout of the page , typeface , colour , More precise control of background and other effects . Just make some simple changes to the corresponding code , You can change different parts of the same interface , Or the appearance and format of different pages of the same website . use CSS Technology is for the separation of web content and presentation .
CSS Language is a markup language , No compilation required , Browser interpreted language , Can be interpreted and executed directly by the browser .CSS Standard by W3C of CSS Working group development and maintenance .
JavaScript
JavaScript Is an object-based and event driven client-side scripting language with relative security . It is also a widely used client Web Developed scripting language , Often used to give HTML Add dynamic features to web pages .
JavaScript The emergence of makes a real-time communication between web pages and users , Dynamic , Interactive relationship .
From Tsinghua University Press 《Web Front end development technology 》（ Third Edition ）
Technology