Related Products
  | 
            
    ||||||
                
            
            
            About
            CSS, short for Cascading Style Sheets, is a style sheet language used by web developers to structure the HTML and other elements of a website. CSS is one of the most widely used languages on the web. For style sheets to work, it is important that your markup be free of errors. A convenient way to automatically fix markup errors is to use the HTML Tidy utility. This also tidies the markup making it easier to read and easier to edit. I recommend you regularly run Tidy over any markup you are editing. Tidy is very effective at cleaning up markup created by authoring tools with sloppy habits. Each style property starts with the property's name, then a colon and lastly the value for this property. When there is more than one style property in the list, you need to use a semicolon between each of them to delimit one property from the next.
             
            
        
         | 
        
        
                
            
            
            About
            The GameMaker Language (also called simply GML) is the proprietary GameMaker scripting language. This language is structured to permit users to create their games in an intuitive and flexible way while offering all the power of any other major programming language. It is also the basis for GML Visual and can be used in conjunction with that if required. Each event has its own tab in the editor and you can add, edit, or remove code from them at any time (for more information on events see Object Events). The code itself must have a basic structure and can contain resource indices, variables, functions, expressions, keywords, etc. all of which are explained in the sections below. If you are a novice to programming or making the switch from GML Visual, it is recommended that you start with the page on basic code structure and then read through all the other pages in this section, testing code from each one within GameMaker itself.
             
            
        
         | 
        
        
                
            
            
            About
            Scheme is a general-purpose computer programming language. It is a high-level language, supporting operations on structured data such as strings, lists, and vectors, as well as operations on more traditional data such as numbers and characters. While Scheme is often identified with symbolic applications, its rich set of data types and flexible control structures make it a truly versatile language. Scheme has been employed to write text editors, optimize compilers, operating systems, graphics packages, expert systems, numerical applications, financial analysis packages, virtual reality systems, and practically every other type of application imaginable. Scheme is a fairly simple language to learn since it is based on a handful of syntactic forms and semantic concepts and since the interactive nature of most implementations encourages experimentation. Scheme is a challenging language to understand fully.
             
            
        
         | 
        ||||
        
        Platforms Supported
            
                Windows
            
            
         
        
    
        
        
            
                Mac
            
            
         
        
    
        
        
            
                Linux
            
            
         
        
    
        
        
            
                Cloud
            
            
         
        
    
        
        
            
                On-Premises
            
            
         
        
    
        
        
            
                iPhone
            
            
         
        
    
        
        
            
                iPad
            
            
         
        
    
        
        
            
                Android
            
            
         
        
    
        
        
            
                Chromebook
            
            
         
        
    
         | 
        
        
        
        Platforms Supported
            
                Windows
            
            
         
        
    
        
        
            
                Mac
            
            
         
        
    
        
        
            
                Linux
            
            
         
        
    
        
        
            
                Cloud
            
            
         
        
    
        
        
            
                On-Premises
            
            
         
        
    
        
        
            
                iPhone
            
            
         
        
    
        
        
            
                iPad
            
            
         
        
    
        
        
            
                Android
            
            
         
        
    
        
        
            
                Chromebook
            
            
         
        
    
         | 
        
        
        
        Platforms Supported
            
                Windows
            
            
         
        
    
        
        
            
                Mac
            
            
         
        
    
        
        
            
                Linux
            
            
         
        
    
        
        
            
                Cloud
            
            
         
        
    
        
        
            
                On-Premises
            
            
         
        
    
        
        
            
                iPhone
            
            
         
        
    
        
        
            
                iPad
            
            
         
        
    
        
        
            
                Android
            
            
         
        
    
        
        
            
                Chromebook
            
            
         
        
    
         | 
        ||||
                
            
        
        Audience
        Web developers
         
        
    
         | 
        
        
                
            
        
        Audience
        Developers and users seeking a solution to create their games in an intuitive and flexible way
         
        
    
         | 
        
        
                
            
        
        Audience
        Professionals in need of a solution to write text editors, optimize compilers, build operating systems, create graphics packages, and manage expert systems
         
        
    
         | 
        ||||
                
            
        
        Support
            
                Phone Support
            
            
         
        
    
        
        
            
                24/7 Live Support
            
            
         
        
    
        
        
            
                Online
            
            
         
        
    
         | 
        
        
                
            
        
        Support
            
                Phone Support
            
            
         
        
    
        
        
            
                24/7 Live Support
            
            
         
        
    
        
        
            
                Online
            
            
         
        
    
         | 
        
        
                
            
        
        Support
            
                Phone Support
            
            
         
        
    
        
        
            
                24/7 Live Support
            
            
         
        
    
        
        
            
                Online
            
            
         
        
    
         | 
        ||||
                
            
        
        API
            
                Offers API
            
            
         
        
    
         | 
        
        
                
            
        
        API
            
                Offers API
            
            
         
        
    
         | 
        
        
                
            
        
        API
            
                Offers API
            
            
         
        
    
         | 
        ||||
                
            
        
        Screenshots and Videos | 
        
        
                
            
        
        Screenshots and Videos | 
        
        
                
            
        
        Screenshots and Videos | 
        ||||
                
            
        
        Pricing
        Free
        
     
    
    
        
        
            
                Free Version
            
            
         
        
    
        
        
            
                Free Trial
            
            
         
        
    
         | 
        
        
                
            
        
        Pricing
        Free
        
     
    
    
        
        
            
                Free Version
            
            
         
        
    
        
        
            
                Free Trial
            
            
         
        
    
         | 
        
        
                
            
        
        Pricing
        Free
        
     
    
    
        
        
            
                Free Version
            
            
         
        
    
        
        
            
                Free Trial
            
            
         
        
    
         | 
        ||||
                
            
        
    
        
Reviews/
         | 
        
        
                
            
        
    
        
Reviews/
         | 
        
        
                
            
        
    
        
Reviews/
         | 
        ||||
                
            
        
        Training
            
                Documentation
            
            
         
        
    
        
        
            
                Webinars
            
            
         
        
    
        
        
            
                Live Online
            
            
         
        
    
        
        
            
                In Person
            
            
         
        
    
         | 
        
        
                
            
        
        Training
            
                Documentation
            
            
         
        
    
        
        
            
                Webinars
            
            
         
        
    
        
        
            
                Live Online
            
            
         
        
    
        
        
            
                In Person
            
            
         
        
    
         | 
        
        
                
            
        
        Training
            
                Documentation
            
            
         
        
    
        
        
            
                Webinars
            
            
         
        
    
        
        
            
                Live Online
            
            
         
        
    
        
        
            
                In Person
            
            
         
        
    
         | 
        ||||
                
            
        
        Company InformationCSS 
    
    Founded: 1996 
    
    
    www.w3schools.com/css/ 
         | 
        
        
                
            
        
        Company InformationYoYo Games 
    
    United States 
    manual.yoyogames.com/GameMaker_Language/GameMaker_Language_Index.htm 
         | 
        
        
                
            
        
        Company InformationScheme 
    
    
    www.scheme.com/tspl4/intro.html#./intro:h0 
         | 
        ||||
                
            
            
    
        
        
        
            Alternatives | 
        
        
                
            
            
    
        
        
        
            Alternatives | 
        
        
                
            
            
    
        
        
        
            Alternatives | 
        ||||
| 
                
            
            
    
        
        
        
        
             | 
        
        
                
            
            
    
        
        
        
        
             | 
        
        |||||
| 
                
            
            
    
        
        
        
        
             | 
        
        ||||||
                
            
        
    
        Categories | 
        
        
                
            
        
    
        Categories | 
        
        
                
            
        
    
        Categories | 
        ||||
                
            
        
    
        Integrations
            
                
    Bullet Train
            
            
         
        
    
        
        
            
                
    Cannoli
            
            
         
        
    
        
        
            
                
    Capacitor
            
            
         
        
    
        
        
            
                
    Eclipse IDE
            
            
         
        
    
        
        
            
                
    FAQPRIME
            
            
         
        
    
        
        
            
                
    GPT-5 mini
            
            
         
        
    
        
        
            
                
    GPT-5 nano
            
            
         
        
    
        
        
            
                
    Gemini 2.0 Flash
            
            
         
        
    
        
        
            
                
    Gemini 2.5 Flash-Lite
            
            
         
        
    
        
        
            
                
    Gemini 2.5 Pro Preview (I/O Edition)
            
            
         
        
    
                
                    
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
                
             | 
        
        
                
            
        
    
        Integrations
            
                
    Bullet Train
            
            
         
        
    
        
        
            
                
    Cannoli
            
            
         
        
    
        
        
            
                
    Capacitor
            
            
         
        
    
        
        
            
                
    Eclipse IDE
            
            
         
        
    
        
        
            
                
    FAQPRIME
            
            
         
        
    
        
        
            
                
    GPT-5 mini
            
            
         
        
    
        
        
            
                
    GPT-5 nano
            
            
         
        
    
        
        
            
                
    Gemini 2.0 Flash
            
            
         
        
    
        
        
            
                
    Gemini 2.5 Flash-Lite
            
            
         
        
    
        
        
            
                
    Gemini 2.5 Pro Preview (I/O Edition)
            
            
         
        
    
                
                    
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
                
             | 
        
        
                
            
        
    
        Integrations
            
                
    Bullet Train
            
            
         
        
    
        
        
            
                
    Cannoli
            
            
         
        
    
        
        
            
                
    Capacitor
            
            
         
        
    
        
        
            
                
    Eclipse IDE
            
            
         
        
    
        
        
            
                
    FAQPRIME
            
            
         
        
    
        
        
            
                
    GPT-5 mini
            
            
         
        
    
        
        
            
                
    GPT-5 nano
            
            
         
        
    
        
        
            
                
    Gemini 2.0 Flash
            
            
         
        
    
        
        
            
                
    Gemini 2.5 Flash-Lite
            
            
         
        
    
        
        
            
                
    Gemini 2.5 Pro Preview (I/O Edition)
            
            
         
        
    
                
                    
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
        
        
        
    
                
             | 
        ||||
| 
                
            
        
    
     | 
        
        
                
            
        
    
     | 
        
        
                
            
        
    
     |