Center an image and a button

Sorry for my English, I'm translating it with Google Translator.

I'm trying Grav with a Skeleton Woo + Admin, and I want to center an image and a button on the page, I've tried everything possible, and what I can think of, and I haven't been able to figure it out.

My code for the image and button is this:

Could someone tell me how to do it?
Thanks

HI @scuret
Using markdown, you can include html tags. For example <div style="text-align: center;">
Otherwise, you would have to change some code in the template from which you want to display the image.
Can you give a little more information about what you want to achieve, and what you have done so far?
Indicate if the page on which you want to make your changes is default or another template.

Thanks for the answer, I have been able to do it with html:

It is not the best option, but at least I don't have to mess with CSS, since I don't master it too much, for the moment it works for me, since I have wasted a lot of time looking for one solution and I don't want to waste any more time.
With the button I have done something similar.
Also thank you very much for the help.