We have three people in our office that work on Macs, two are running Safari 11.1 and one is running 11.03.
Of the three people, 2 of them see the website like this on Safari: https://www.screencast.com/t/8k2iNZL8cZkc. One of them is running 11.1 and one is running 11.03. The one who sees it properly is running 11.1.
They have all cleared their caches and viewed in incognito mode as well. They all see it correctly on Chrome and Mozilla.
Can you please let us know if this is a known problem and what we can do to fix it. Thanks!