Trying to render native html elements
<!-- Oh no, it's a bug! Help us help you, by providing following information: -->

**html-sketchapp version:** <!-- e.g. 4.0.1 - if you are not using the latest version (https://github.com/brainly/html-sketchapp/releases/latest) , please check if upgrading will fix your problem  -->
4.0.1

**minimal example:** <!-- jsbin/jsfiddle/codepen/gist with html/css code that's not correctly imported by html-sketcahpp -->
https://gist.github.com/beatscode/ef086b57cc8cda9a81d8dc02f71c4777
**screenshot from the browser:** <!-- paste the screenshot/gif from the browser of the element that doesn't get properly imported -->
https://user-images.githubusercontent.com/1777648/48267519-907c5380-e400-11e8-8fef-edf7fc69c3fb.png
**screenshot from Sketch:** <!-- paste the screenshot/gif from Sketch showing broken element -->
https://user-images.githubusercontent.com/1777648/48265279-1cd74800-e3fa-11e8-8ca8-59651a4563b4.png
<!-- Thank you! This information will help us reproduce the issue and, hopefully, fix it. -->

I tried posting to https://github.com/seek-oss/html-sketchapp-cli but they referred me here. 
I don't see checkboxes, radio boxes, or selects.