Too Long; Didn't Read
Do you ever imagine yourself or an animal body without skeleton and other parts? it looks invisible, doesn’t it? How would it feel if a shape of skeleton moved around you without any flesh, eyes, hands, legs, and so on? wired, right?. The relation between modern web apps and HTML & CSS is similar to that. HTML (Hyper Text Markup Language) is the skeleton of a web app and without CSS it looks weird. They are true soulmates other and it is quite impossible to think about a modern web app without them.