<!DOCTYPE html> <html> <head> <style> #outermost { border: 2px solid; } #outer { border: 4px solid yellow; } #inner { border: 6px sold green; } </style> </head> <body> <span id="outermost"> <span id="outer"> <span id="inner"> <span style="display: block"></span> before span <span style="display: block">span</span> after span </span> </span> </span> </body> </html>