Answers for "how to hide div using html"

hide a div

<div id="main"> 
  <p> Hide/show this div </p>
</div>

('#main').hide(); //to hide

// 2nd way, by injecting css using jquery
$("#main").css("display", "none");

html hide element

document.getElementById('elementId').style.display = "none";

how hide in html

#elementID{
display:none;
}

how to hide div in html

document.getElementById('elementName').hide();

hide a div

const targetDiv = document.getElementById("third");
const btn = document.getElementById("toggle");
btn.onclick = function () {
  if (targetDiv.style.display !== "none") {
    targetDiv.style.display = "none";
  } else {
    targetDiv.style.display = "block";
  }
};