Margins in Gallery section?

Site URL: http://tomosyamaguchi.com/art

Hello! I was wondering whether it's possible to create a code to create thick margins on both sides of the page for my "art" page, to create a more minimalist feel like my "about" page. Any suggestions would be greatly appreciated!

(Side note: would also appreciate any tips on how to reduce the size of my headings for my blog posts ("words") - somehow the size of the body text shrinks, but not the titles!)

19 hours ago, tomosyamaguchi said:

Site URL: http://tomosyamaguchi.com/art

Hello! I was wondering whether it's possible to create a code to create thick margins on both sides of the page for my "art" page, to create a more minimalist feel like my "about" page. Any suggestions would be greatly appreciated!

 

(Side note: would also appreciate any tips on how to reduce the size of my headings for my blog posts ("words") - somehow the size of the body text shrinks, but not the titles!)

Add to Design > Custom CSS

/* Art gallery padding */
body#collection-5eac1aa8b694234cc8b93dd5 .gallery-grid.gallery-grid--layout-grid {
    padding-left: 20vw;
    padding-right: 20vw;
}
/* blog title size */
h1.blog-title a {
    font-size: 1.9rem;
}