Is it possible for an operating system to cause a website to display differently? I've been trying to debug a graphical glitch for a client, but am unable to recreate it myself. From what I'm told, viewing the site (link below) on an iOS device causes an empty circle to appear in the homepage banner. However, I cannot replicate this bug on an Android phone nor a desktop browser, and do not personally have access to an iOS device.
I've requested members of my team to test this, and of the two iPhone users who responded, both reported this to occur in Safari and Google Chrome. It should be noted that both are on the latest release of iOS, in case this holds any significance.
Any help with tackling this issue is greatly appreciated. Note that the site is built on WordPress, but I've posted it here as it didn't seem like a WordPress-specific issue.
Website in Question: http://www.fineyachtfinishing.com/