Custom icon size, override site theme

Hi All.
I’m looking for a way to double-size the icons on my home page. There are six of them in total and the first of the six can be seen here:
https://native-speaker.biz/wp-content/uploads/2017/08/Optimise_icon_compact-1.png

The theme used for the site is Alchem. If I inspect the script for the icon I’ve linked to above, I see this:

<img src="https://native-speaker.biz/wp-content/uploads/2017/08/Optimise_icon_compact-1.png" alt="" />

So, I reckon it’s possible to adjust the scale using this element: scale=”0″

Where I should put the customised script? And do I need to add any other elements to the script, apart from what I’ve pasted in above?

Many thanks for any tips you can provide!

• This topic was modified 6 years, 2 months ago by Nicolato.

The page I need help with: [log in to see the link]