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✨ PONGSATORN PHATTARASRIVAJCHAKARN
<html> <head> <title>Let's Start </title> <style> .redb{ width : 100px; height : 100px; background-color : red; margin : 5px; } .blueb{ width : 100px; height : 100px; background-color : blue; margin : 5px; } </style> </head> <body> <div class = "redb"></div> <div class = "redb"></div> <div class = "blueb"></div> <div class = "blueb"></div> <div class = "blueb"></div> </body> </html>