As a bengali user you should fix the bangla font problem of your pc for best viewing experience. No more small default font, follow this article to change your browser font and feel the difference.
First of all install Avro Keyboard 5.5.
For fixing font problem in firefox, go to…
Menu—option—content—fonts and color—advanced—fonts for—bengali and set the last three fonts to “Siyam Rupali or Noto Sans Bengali or Solaiman Lipi”—ok
For fixing font problem in chrome, go to…
Menu—settings—show advanced settings—customize fonts—set the four type of fonts to “Siyam Rupali or Noto Sans Bengali or Solaiman Lipi”—done
For fixing font problem in opera, go to…
Menu—settings—websites—customize fonts—set the four type of fonts to “Siyam Rupali or Noto Sans Bengali or Solaiman Lipi”—done
And from now on enjoy the new experience. There are also a lots bangla fonts in my software collection. Among them, you can try “Noto Sans Bengali” which is an awesome looking font.