Looking for i frame code? Here it is and instruction ...

 
<iframe name="FRAME1" src="http://www.example.com/source.htm" width="350" height="300" frameborder="0" scrolling="auto"></iframe>
 

To  show 250 px width, set width 300 in code. To make it more clear, see the chart below

  • For  w250 h250, set w350 h300
  • For w160 h600, set w190 h630
  • For w120 h600, set w150 h630
  • For w728 h90,  set w778 h140

You may have to test it manually !! Remember, i-frame shows from left-top side always.

Note: To remove all formatting, copy/paste the code in Notepad first, then into webpage