To remove element ID I use document.getElementById("your-id").remove();
For Class I use code below but It's not working:
document.getElementsByClassName("hide1").remove();<div class=hide1>
  <center>Hide Me</center>
</div>To remove element ID I use document.getElementById("your-id").remove();
For Class I use code below but It's not working:
document.getElementsByClassName("hide1").remove();<div class=hide1>
  <center>Hide Me</center>
</div> 
    
    If there's only one, you can use querySelector:
document.querySelector(".hide1").remove();<div class=hide1>
  <center>Hide Me</center>
</div>If you're using getElementsByClassName, you'll be dealing with a NodeList you'll have to iterate over:
[...document.getElementsByClassName("hide1")].forEach(el=>el.remove());<div class=hide1>
  <center>Hide Me</center>
</div>