<! The doctype> declaration must be the first line in the HTML document, before the <! The doctype> declaration is not an HTML tag; it is a directive that instructs the Web browser to write which HTML version of the page to use.
The <meta> element provides meta-information about the page (meta-information), such as descriptions and keywords for search engines and update frequency.
The <meta> tag is located in the header of the document and does not contain any content. The properties of the <meta> tag define the name/value pairs associated with the document.
<link> tags define the relationship of documents to external resources.
The most common use of <link> tags is to link style sheets.
<script> tags are used to define client-side scripting, such as JavaScript.
The script element can contain either a scripting statement or an external script file through the SRC attribute.
The required Type property specifies the MIME type of the script.
Common applications for JavaScript are image manipulation, form validation, and dynamic content updates.
<form> tags are used to create HTML forms for user input.
A form can contain input elements such as text fields, checkboxes, radio boxes, submit buttons, and so on.
Forms can also contain menus, textarea, fieldset, legend, and label elements.
Forms are used to transfer data to the server.
HTML Meta link script form