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<html> <head> <title> abc </title> <img src="https://media.giphy.com/media/OPU6wzx8JrHna/giphy.gif"> <style> body{ display:flex; margin:0; background: black; } img{ margin:auto; height: 40vh; border-radius: 50%; box-shadow: 0px 0px 20px 2px hsl(170, 100%, 50%, 0.5); transition: all 1s; } img:hover{ box-shadow: 0px 0px 20px 10px hsl(170, 100%, 50%, 1); } </style> <body> </body> </head> </html>