Retina ready image

1

Can anyone explain why making the height and width smaller make it retina ready? thanks again!


```<style>
  img { height: 250px; width: 250px; }
</style>
<img src="coolPic500x500" alt="A most excellent picture">```
3

sorry to be dense but when I enter those they don’t appear on my post??? However if I edit the code block I see the backticks are there! thanks

<style>
  img { height: 250px; width: 250px; }
</style>
<img src="coolPic500x500" alt="A most excellent picture">
4

still wondering if anyone can answer my question on retina ready… thanks again