TopStyle

TopStyle is a CSS development auxiliary tool, that is, an HTML5/CSS3 editor. It focuses on HTML CSS design assistance and provides many functions, such as CSS code inspection. It is said that TopStyle's help file is very good and has detailed CSS instructions. , suitable for learning CSS for the first time.
However, if you want to know CSS well and be very proficient in CSS web page layout, you should throw away all auxiliary software and use Notepad to develop. After you are proficient in CSS, you can use such auxiliary software to improve work efficiency and development speed.
TopStyle Pro is a WYSIWYG div+css style editor software. You can edit better and more complete CSS! CSS styles with better compatibility. TopStyle has CSS code checking function to reduce the chance of writing errors.
It is an auxiliary tool focused on CSS design. It has many functions and comes with a CSS code checking function to reduce the chance of writing errors. In particular, the detailed introduction of CSS instructions in its help file is very suitable for use as a reference file and for learning by people who are new to CSS.

TopStyle supports revision editing of HTML, XHTML, and CSS file formats, as well as powerful checking of browser standards and compatibility issues. Inspections cover different levels, from the strict W3C CSS specifications to various browser issues. This style checking function not only provides detailed warning information, but also allows users to intuitively see the incompatibility of HTML or CSS code with specific browsers.

The software can also support converting non-recommended HTML style CSS codes into valid HTML codes and checking for orphaned XHTML codes or web pages.

TopStyle integrates HTML Tidy and W3C's validation services.

In order to thoroughly verify the syntax of HTML and XHTML even offline, TopStyle integrates CSE HTML Validator. TopStyle 4 can also check links using CSE HTML Validator.

TopStyle is also integrated with several editors or tools.

Syntax highlighting supported formats: PHP, ASP, CFML, CSS, XHTML, HTML, JavaScript and VBScript, etc.