To create web style guides and documentation, you must go through a systematic process that involves research, analysis, design, and testing. Firstly, you should research your target audience, competitors, and best practices. Consider the needs and expectations of your users and the strengths and weaknesses of your competitors. Additionally, review the trends and standards in web design and usability. Secondly, analyze your website's content, structure, and purpose. Define the scope, goals, and objectives of your website. Then organize your content into logical categories and hierarchies. Establish the tone, voice, and message of your website. Thirdly, design your website's elements and components. Select fonts, colors, and images that reflect your brand identity and audience. Create a grid system and a responsive layout that works across different screen sizes and orientations. Design the navigation, buttons, forms, and other interactive elements that facilitate user actions and feedback. Make sure to use consistent naming conventions for your elements and components. Lastly, test your website's functionality and appearance. Check its performance, accessibility, accessibility across devices and browsers. Validate the code to fix any errors or bugs. Ask for feedback from users, clients, or peers then refine or improve the design based on this feedback or data.