Set width and height attributes of the image
<!DOCTYPE html> <html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"> </script>// w w w . j a va2 s . c o m <script> $(document).ready(function(){ $("button").click(function(){ $("img").attr({width: "150", height: "100"}); }); }); </script> </head> <body> <img src="image4.png" alt="image4.png" width="100" height="100"><br> <button>test</button> </body> </html>