My Wiki Viewer (some mobile issues)

Just finished my version: https://codepen.io/eXConf/full/oLKBER

I like how it looks (take me a while to come to this), although it has some problems on mobile devices:
Android: screen keyboard doesn’t hide after pressing “Enter”;
iOS:

  1. shows just a part of search results;
  2. the whole page goes empy when you hide screen keyboard :confused: