Remove Main Image Wrapper/White Space from Blog Post

Site URL: https://www.chacha-olivia.com/theos-thoughts-1/2020/9/11/how-to-shop-sustainably-good-design-is-sustainable-design

Hi there, 

I wanted to remove a main image wrapper that appears at the top of my blog post (this is being pulled from the thumbnail image I uploaded for this post). I used the following code to get rid of it:

<style>

.main-image-wrapper {

visibility: hidden; }

</style>

But now there is a bunch of white space where the image used to be. Is there a way to eliminate the white space? Below is a link to the blog post and white space I am referring to:

https://www.chacha-olivia.com/theos-thoughts-1/2020/9/11/how-to-shop-sustainably-good-design-is-sustainable-design

Any help would be so much appreciated. Thank you!!

-Kristen