How can I modify the blog layout in the Dawn theme?

[10xfuel]

Hi! How can I change the blog layout on https://www.10xfuel.com/blogs/blog  like this:

[kevinkarma55 · Accepted solution]

Hi,

Do into theme.css and fine following code 

.blog-articles--collage>*:nth-child(3n+1), .blog-articles--collage>*:nth-child(3n+2):last-child {
    grid-column: span 2;
    text-align: center;
}

and Remove the line of code : grid-column: span 2;

[10xfuel]

perfect - thank you!