Sample Humberger Open Close Icons With DropDown Menu

Here's a complete HTML + CSS example showing how to build a hambergur menu that toggle between open and close icons, and includes dropdown submenu -- all done with pure HTML and CSS (no JavaScript).

HTML Sample Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Hamburger Menu with Dropdown</title>
  <link rel="stylesheet" href="style.css">
</head>
<body>

  <nav class="navbar">
    <!-- Toggle Checkbox -->
    <input type="checkbox" id="menu-toggle">
    
    <!-- Menu Icon (Open/Close) -->
    <label for="menu-toggle" class="menu-icon">
    <span class="open-icon">&#9776;</span>    <!-- ? Hamburger icon -->
    <span class="close-icon">&times;</span>   <!--  X Close icon -->
    </label>

    <!-- Navigation Menu -->
    <ul class="menu">
      <li><a href="#">Home</a></li>
      <li class="dropdown">
        <a href="#">Services</a>
        <ul class="dropdown-menu">
          <li><a href="#">Web Design</a></li>
          <li><a href="#">Mobile Apps</a></li>
          <li><a href="#">Consulting</a></li>
        </ul>
      </li>
      <li><a href="#">About</a></li>
      <li><a href="#">Contact</a></li>
    </ul>
  </nav>

</body>
</html>

CSS (Styles.css



/* --- Reset and base styles --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Poppins", sans-serif;
  background: #f4f4f4;
}

/* --- Navbar Container --- */
.navbar {
  background-color: blue;
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  position: relative;
}

/* --- Hide the checkbox --- */
#menu-toggle {
  display: none;
}

/* --- Menu Icon --- */
.menu-icon {
  cursor: pointer;
  font-size: 28px;
  color: white;
  display: inline-block;
}

.menu-icon .close-icon {
  display: none;
}

/* --- Navigation Menu --- */
.menu {
  list-style: none;
  display: none;
  flex-direction: column;
  width: 100%;
  background-color: blue;
  position: absolute;
  top: 60px;
  left: 0;
}
.menu li a {
  color: white;
  text-decoration: none;
  padding: 12px 20px;
  display: block;
  transition: background 0.3s;
}

.menu li a:hover {
  background: red; 
}

/* --- Dropdown Menu --- */
.dropdown {
  position: relative;
}

.dropdown-menu {
  list-style: none;
  display: none;
  background-color: blue;
}

.dropdown-menu li a {
  padding-left: 40px;
}

.dropdown:hover .dropdown-menu {
  display: block;
}


/* --- Toggle Icons and Menu --- */
#menu-toggle:checked + .menu-icon .open-icon {
  display: none;
}

#menu-toggle:checked + .menu-icon .close-icon {
  display: inline;
}

#menu-toggle:checked ~ .menu {
  display: flex;
}

/* --- Responsive for Larger Screens --- */
@media (min-width: 768px) {
  .menu {
    display: flex !important;
    flex-direction: row;
    align-items: left;
    justify-content: flex-end;
    background: none;
    position: static;
    width: auto;
  }

 .menu li {
    position: relative;
  }

  .menu li a {
    padding: 10px 15px;
  }

 .menu-icon {
    display: none;
  }

/* Dropdown for Desktop */
  .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    display: none;
    background-color: blue;
    min-width: 260px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
  }

  .dropdown:hover .dropdown-menu {
    display: block;
  }
}

/* --- Optional Smooth Dropdown Animation --- */
.dropdown-menu {
  transition: all 0.3s ease;
}

HTML Sample Code

CSS (Styles.css

RESULT HUMBERGER MENU with different open and close icons and with drop down menu