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issue #163 contains a link to https://visjs.github.io/vis-network/examples/network/nodeStyles/icons.html where fa-icons (v4 and v5) are displayed, I will try that code instead. Anyway having a look/fix at the first URL would be...

Ok, `document.fonts.load('normal normal 400 24px/1 "FontAwesome"').then(paint).catch(console.error)` solves the problem. For those reading the issue, you can also use the newer fa version 5 in `icons.html`. (I leave the issue as...

@fonziemedia: for 4 spaces (python, etc) you may play with the margin-left property. This should work fine: `margin-left: -1em;`