title: Black line over the code in Android Studio and IntelliJ IDEA
body: <p>I first got this problem in IntelliJ IDEA while writing code but now I"m having this in Android Studio also. 
  I get a black line over my code when I place the cursor in between the code.
  Is there anyone who is having the same problem as me?
  I'll appreciate your help.</p>
  
  <p><img src="https://i.stack.imgur.com/nkwlh.png" alt="Black line over the code in IntelliJ IDEA and Android Studio"></p>