CSS - To Space or Not to Space - What is the difference?
What is the difference between the following css selectors: .a.b and .a .b?
Rails, Tekla Open API, AutoDesk .NET
What is the difference between the following css selectors: .a.b and .a .b?

Which one can you make better sense of?
Consider the following code snippet. Each div has a different flex-grow factor set. Given the flex-container’s width, and the flex-item’s initial width, what do you expect the final width of the flex-item to be?
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