![Ivan Akulov on Twitter: "CSS tip: if you use `overflow: scroll`, it's likely you actually want `overflow: auto`. “overflow: scroll” means “*always* show scrollbars”. You won't see the difference on a Mac Ivan Akulov on Twitter: "CSS tip: if you use `overflow: scroll`, it's likely you actually want `overflow: auto`. “overflow: scroll” means “*always* show scrollbars”. You won't see the difference on a Mac](https://pbs.twimg.com/media/EZ3eQ_eWsAAFQne.png)
Ivan Akulov on Twitter: "CSS tip: if you use `overflow: scroll`, it's likely you actually want `overflow: auto`. “overflow: scroll” means “*always* show scrollbars”. You won't see the difference on a Mac
![Ahmad Shadeed on Twitter: "Use `overflow-y: auto` rather than `overflow-y: scroll` to show a scrollbar only when needed. #CSS https://t.co/679BPszE1j" / Twitter Ahmad Shadeed on Twitter: "Use `overflow-y: auto` rather than `overflow-y: scroll` to show a scrollbar only when needed. #CSS https://t.co/679BPszE1j" / Twitter](https://pbs.twimg.com/media/EhPpvfFXkAAOyM4.jpg)
Ahmad Shadeed on Twitter: "Use `overflow-y: auto` rather than `overflow-y: scroll` to show a scrollbar only when needed. #CSS https://t.co/679BPszE1j" / Twitter
![Big dropdowns are unusable when used inside an `overflow:scroll` container, due to being constrained inside it · Issue #24251 · twbs/bootstrap · GitHub Big dropdowns are unusable when used inside an `overflow:scroll` container, due to being constrained inside it · Issue #24251 · twbs/bootstrap · GitHub](https://user-images.githubusercontent.com/522085/31194832-54d24bda-a916-11e7-9ad3-85541dd35f62.png)