Implement CSS Hover functionality even when the element is concealed through JavaScript

Question

Implement CSS Hover functionality even when the element is concealed through JavaScript

My website features a menu with headings and submenus. The issue arises when users hover over the headings - the submenus fail to show up. Additionally, after clicking on an item in the submenu, the submenu should be hidden using Javascript. However, the hover functionality of the menu is disrupted due to this. I need assistance in resolving this problem.

function closesSan() {
  document.getElementsByClassName('submenu')[0].style.setProperty('display', 'none', 'important');
}

#main:hover .submenu {
  display: block!important;
}

<ul>
  <li id="main">
    <a href="javascript:void(0)">List</a>
    <ul class="submenu" style="display: none;">
      <li onclick="closesSan()">Bacon</li>
      <li onclick="closesSan()">Tuna</li>
      <li onclick="closesSan()">Chicken</li>
    </ul>
  </li>
</ul>

javascript html css

Answer 1

Answer №1

After some troubleshooting, I realized that the issue with the code was related to the important and property elements which were conflicting in terms of prioritization within the code. To resolve this, I implemented additional classes that are added on click events and removed on hover actions. This adjustment should meet the required criteria and function as intended.

var main = document.getElementById("main");
main.onmouseover = function() {
  document.querySelector('.submenu').classList.remove("displayNoneImp");
}

function closesSan() {
  document.querySelector('.submenu').classList.add("displayNoneImp");
}

.submenu {
  display: none;
}

#main:hover .submenu {
  display: block;
}

.displayNoneImp {
  display: none !important;
}

<ul>
  <li id="main">
    <a href="javascript:void(0)">List</a>
    <ul class="submenu">
      <li onclick="closesSan()">Bacon</li>
      <li onclick="closesSan()">Tuna</li>
      <li onclick="closesSan()">Chicken</li>
    </ul>
  </li>
</ul>

Answer 2

After some troubleshooting, I realized that the issue with the code was related to the important and property elements which were conflicting in terms of prioritization within the code. To resolve this, I implemented additional classes that are added on click events and removed on hover actions. This adjustment should meet the required criteria and function as intended.

var main = document.getElementById("main");
main.onmouseover = function() {
  document.querySelector('.submenu').classList.remove("displayNoneImp");
}

function closesSan() {
  document.querySelector('.submenu').classList.add("displayNoneImp");
}

.submenu {
  display: none;
}

#main:hover .submenu {
  display: block;
}

.displayNoneImp {
  display: none !important;
}

<ul>
  <li id="main">
    <a href="javascript:void(0)">List</a>
    <ul class="submenu">
      <li onclick="closesSan()">Bacon</li>
      <li onclick="closesSan()">Tuna</li>
      <li onclick="closesSan()">Chicken</li>
    </ul>
  </li>
</ul>

Answer 3

Answer №2

When implementing CSS, it is recommended to use event listeners instead of relying on !important in your styles whenever possible:

var main = document.querySelector('#main');
var submenu = document.querySelector('.submenu');
var items = document.querySelectorAll('#main li');

main.addEventListener('mouseover', function () {  
  submenu.style.display = 'block';
});

main.addEventListener('mouseout', function () {
  submenu.style.display = 'none';
});

items.forEach(function(item) {
  item.addEventListener('click', function () {
    console.log('clicked on:', item)
    submenu.style.display = 'none';
  });
});

.submenu {
  display: none;
}

<ul>
  <li id="main">
    <a href="javascript:void(0)">List</a>
    <ul class="submenu">
      <li>Bacon</li>
      <li>Tuna</li>
      <li>Chicken</li>
    </ul>
  </li>
</ul>

Choosing When to Use !important in CSS

Answer 4

When implementing CSS, it is recommended to use event listeners instead of relying on !important in your styles whenever possible:

var main = document.querySelector('#main');
var submenu = document.querySelector('.submenu');
var items = document.querySelectorAll('#main li');

main.addEventListener('mouseover', function () {  
  submenu.style.display = 'block';
});

main.addEventListener('mouseout', function () {
  submenu.style.display = 'none';
});

items.forEach(function(item) {
  item.addEventListener('click', function () {
    console.log('clicked on:', item)
    submenu.style.display = 'none';
  });
});

.submenu {
  display: none;
}

<ul>
  <li id="main">
    <a href="javascript:void(0)">List</a>
    <ul class="submenu">
      <li>Bacon</li>
      <li>Tuna</li>
      <li>Chicken</li>
    </ul>
  </li>
</ul>

Choosing When to Use !important in CSS

Answer 5

Answer №3

Here is a simple example you can try:

function hideSubmenu() {
  document.getElementsByClassName('submenu')[0].classList.add("hide");
  setTimeout(function() {
      document.getElementsByClassName('submenu')[0].classList.remove("hide");
  },100)
}

#main .submenu {
  display: none;
}

#main:hover .submenu {
  display: block;
}
#main .submenu.hide {
  display: none;
}

<ul>
  <li id="main">
    <a href="javascript:void(0)">Menu</a>
    <ul class="submenu" >
      <li onclick="hideSubmenu()" >Option 1</li>
      <li onclick="hideSubmenu()">Option 2</li>
      <li onclick="hideSubmenu()">Option 3</li>
    </ul>
  </li>
</ul>

Answer 6

Here is a simple example you can try:

function hideSubmenu() {
  document.getElementsByClassName('submenu')[0].classList.add("hide");
  setTimeout(function() {
      document.getElementsByClassName('submenu')[0].classList.remove("hide");
  },100)
}

#main .submenu {
  display: none;
}

#main:hover .submenu {
  display: block;
}
#main .submenu.hide {
  display: none;
}

<ul>
  <li id="main">
    <a href="javascript:void(0)">Menu</a>
    <ul class="submenu" >
      <li onclick="hideSubmenu()" >Option 1</li>
      <li onclick="hideSubmenu()">Option 2</li>
      <li onclick="hideSubmenu()">Option 3</li>
    </ul>
  </li>
</ul>

Answer 7

Answer №4

opt for visibility over display

visibility: hidden;

rescue those meowing kittens

Answer 8

opt for visibility over display

visibility: hidden;

rescue those meowing kittens

Implement CSS Hover functionality even when the element is concealed through JavaScript

Answer №1

Answer №2

Answer №3

Answer №4

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Implement CSS Hover functionality even when the element is concealed through JavaScript

Answer №1

Answer №2

Answer №3

Answer №4

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