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✨ Karnsiri Phongsiyanuwat
<html> <head> <title>Let's Start </title> </head> <body> <style> .square{ width:100px; height:100px; margin:5px; } .red{ background:red; } .blue{ background:blue; } </style> <div class="red square"></div> <div class="red square"></div> <div class="red square"></div> <div class="blue square"></div> <div class="blue square"></div> </body> </html>