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<html> <head> <title> E2 </title> <style> body{ background: linear-gradient(to bottom right, blue, green); } img{ border:10px solid white; align-items:center; width:50%; display:block; margin-left:auto; margin-right:auto; } </style> </head> <body> <img src="https://media.giphy.com/media/BXfMQUTvNNBFm/giphy.gif"> </body> </html>