The img command on html on textedit or notepad isn't working?

I tried it on both my devices windows and mac it cannot detect the image even though i matched the command exactly. could someone help? or:I tried it

I tried it on both my devices windows and mac it cannot detect the image even though i matched the command exactly. could someone help?

or:I tried it on both my devices windows and mac it cannot detect the image even though i matched the command exactly. could someone help?

Tags:html,