These editors typically include the option of using palette windows or dialog boxes to edit the text-based parameters of selected objects. To ease this requirement, some editors allow editing of the markup in more visually organized modes than simple color highlighting, but in modes not considered WYSIWYG. Text editors require user understanding of HTML and any other web technologies the designer wishes to use like CSS, JavaScript and server-side scripting languages. Some functions, such as link checking or validation may use online tools, requiring a network connection.
Text editors commonly used for HTML typically include either built-in functions or integration with external tools for such tasks as version control, link-checking and validation, code cleanup and formatting, spell-checking, uploading by FTP or WebDAV, and structuring as a project. Wizards, tooltip prompts and autocompletion may help with common tasks. Some editors additionally feature templates, toolbars and keyboard shortcuts to quickly insert common HTML elements and structures. Text editors intended for use with HTML usually provide at least syntax highlighting. There are two main varieties of HTML editors: text and WYSIWYG (what you see is what you get) editors. 1.2.1 Difficulties in achieving WYSIWYG.
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