3-columns-preview-card-component

When I built this first version of the project, I struggled to wrap the cards into the correct container to achieve the cards to sit next to each other. Also, I did not manage to do a letter spacing that nearly represented the looks of the design. H1 - how can I have an H1 without specific text? According to my understanding, I can only have one H1 on one page. Was it expected to make the footer an H1 - as this is the only non-repetitive text on the site? And to make it even worse, I could not place the main (hence the card container) in the center of the page so far.