To start, we use our phones for internet more than anything else. So, mobile first web design for small screens. Given, proper netiquette.
We use the web to overcome challenges. So, accessibility text, audio, and video for web design. Given, proper netiquette.
We look a certain way. Also, for certain visual cues. So, white space highlights content for web design. Given, proper netiquette.
Good sites have modules. Most of us make social media profiles on some types of rows and column. Grid layout systems for web design. Proper netiquette.
Almost a religious requirement for some. Personally, compared it to a white shirt. So, white background for clean web design. Given, proper Netiquette.