Web development refers to the building, creating, and maintaining websites. It includes aspects such as web design, web publishing, web programming, and database management. Web designer only designs website interfaces using HTML and CSS. A web developer may be involved in designing a website, but may also write web scripts in languages such as PHP and ASP. Additionally, a web developer may help maintain and update a database used by a dynamic website.
HTML stands for Hyper Text Markup Language.HTML describes the structure of Web pages using markup. HTML elements are the building blocks of HTML pages.HTML elements are represented by tags. HTML tags label pieces of content such as "heading", "paragraph", "table", and so on. Browsers do not display the HTML tags but use them to render the content of the page.
CSS stands for Cascading Style Sheets.CSS describes how HTML elements are to be displayed on screen, paper, or in other media. CSS saves a lot of work. It can control the layout of multiple web pages all at once. External stylesheets are stored in CSS files.
PHP is an acronym for "PHP: Hypertext Preprocessor".PHP is a widely-used, open source scripting language. PHP scripts are executed on the server and PHP is free to download and use. It is powerful enough to be at the core of the biggest blogging system on the web (WordPress)! It is deep enough to run the largest social network (Facebook)!It is also easy enough to be a beginner's first server-side language!