Lucida Grande appears not to work

thvv-orion

My page has a <span class="macmenu">stuff</span>

where "macmenu" is in a .css file as
.macmenu {font-family: "Lucida Grande",Arial,Helvetica,Sans-serif; font-weight: bold; font-size: 90%;}

nothing displays in the iOS version of Orion downloaded from the app store.
It seems to work on macOS.

In Safari, Firefox, Chrome, and Vivaldi, on iOS, the text displays correctly.

1.3.14 iOS

thvv-orion

I re-installed the same version of Orion on my Mac from the App Store.
It worked fine. My formatting problems went away.

The text in <span class="macmenu">xxx</span> displayed properly instead of not at all.
A paragraph with <div class="programming"> ..... </div> displayed correctly: it showed a light blue background
set by <style> .programming {background-color: #f0f0ff;} </style>