If you’re just learning I think you’re better off without using a full framework like Bootstrap or Foundation. This is the time where you should be doing more o

If you’re just learning I think you’re better off without using a full framework like Bootstrap or Foundation. This is the time where you should be doing more of the leg work to understand how the different properties work, how the cascade works, the different methods to aligning elements (what a grid system would typically take care of for you), etc. Looks at sites like CSS Zen Garden or CSS Tricks to help you along your journey. Now, as for whether those with more experience write their own or not, it’s usually a compromise between what that expert thinks is ideal, what the team he's working with believes is ideal and what's actually necessary for the project. To me the ideal is doing almost everything from scratch, minus resets like Normalize or grids like Foundation’s – and just the grid – because they are done very well already. However past that I know I’ll run into roadblocks immediately trying to fit the look & feel into those frameworks and still be leftover with a bunch of cruft I don’t need. I can also write my selectors in a more maintainable fashion which will lead to less debugging headaches and scalabilities issues down the road.