Changing the background of a grid blog - Only behind the text

Site URL: https://seanandemilytravels.com/

Hi, 

I am looking to create this effect on my grid blog but i cant seem to edit the back ground of my blog. 

The effect I'm going for 

What I currently have 

And advice would be great!

Thanks 

Add to Design > Custom CSS

article.blog-basic-grid--container.entry.blog-item.is-loaded {
    background-color: white;
    text-align: center;
}

Hi!! Thank you so much this has really help but now they are the same on my summery blocks .. Cn you Help with the issue too?

On 2/3/2022 at 2:34 PM, EmilyRose said:

Hi!! Thank you so much this has really help but now they are the same on my summery blocks .. Cn you Help with the issue too?

Hi. You mean you want to make this on blog page only??