How can i make a image smaller with CSS?

Question

How to make a image smaller(px) with CSS

Answer 1

add style='height:1em; width:1em;" as an inline inside the <img tag />
or
<style>
img { height:1em; width:1em; }
</style>
https://code.sololearn.com/WDTrFdfSufpC/?ref=app

Answer 2

width : 200px;
height : auto;