# Border radius
[https://stackoverflow.com/questions/3714862/forcing-child-to-obey-parents-curved-borders-in-css/3724210](https://stackoverflow.com/questions/3714862/forcing-child-to-obey-parents-curved-borders-in-css/3724210)
when using border-radius. make sure to use overflow: hidden together
overflow: hidden;
border-radius: 5px;
otherwise, when child use background color, it can overlap its parent's round border
[http://jsfiddle.net/Lpj85nrv/](http://jsfiddle.net/Lpj85nrv/)