How to use an image as icon button for dropdown menu in navbar using html and css

HTML-CSS
1

I am new to coding html and css. I am working on this navbar where I want to achieve a dropdown effect when I hover on the hamburger image icon in the navbar for tablets and mobile phones. But my cocd is not working. Please help. Here is what I have done so far.

html:

    <div id="navbar">
        <h1 id ="logo">amarealcoder</h1>
        <a href="#home">Home</a>
        <a href="#skills">My skills</a>
        <a href="#projects">Projects</a>
        <a href="#contact">Contact</a>
        <div class="dropdown">
            <img id="icon" src="https://cdn4.iconfinder.com/data/icons/wirecons-free-vector-icons/32/menu-alt-512.png" />
            <div class="dropdown-content">
                <a href="#home">Home</a>
                <a href="#skills">My skills</a>
                <a href="#project">Projects</a>
                <a href="#contact">Contact</a>
            </div>
        </div>
    </div>

/* css */
    
#navbar {
  overflow: hidden;
  background-color: #35424a;
  position: fixed;
  width: 100%;
  color: #ffffff;
  border-bottom: #e8491d 3px solid;
  overflow: hidden;
  margin: 0 auto; 
  z-index: 1;
  top: 0;
}
#navbar #logo{
  display: inline;
  padding-left: 40px;
  float: left;
  font-family: 'Langar', cursive;
  color: #e8491d;
  font-size: 30px;
  margin-top: 17px;
}
#navbar a {
  float: right;
  font-size: 16px;
  color: #f4f4f4;
  text-align: center;
  padding: 20px;
  margin-top: 10px;
  text-decoration: none;
  text-transform: uppercase;
}
.dropdown{
  display: none;
  float: right;
  overflow: hidden;
}
.dropdown #icon{
  width: 20px;
  height: 20px;
  float: right;
  margin-top: 5px;
  padding: 16px;
  font-size: 16px;
  display: none;
  background-color: #e8491d;
}
#navbar a:hover, .dropdown:hover {
  background-color: #e8491d;
}
.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  height: 100%;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
}
.dropdown-content a {
  float: none;
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  text-align: left;
}
.dropdown-content a:hover {
  background-color: #ddd;
  color: #e8491d;
}

.dropdown:hover .dropdown-content {
  display: block;
}
@media(max-width: 600px){
  #navbar a {
    display: none;
  }
  .dropdown{
    display: block;
  }
}
  /* media queries for tablets */
@media(max-width: 961px){
  #navbar a {
    display: none;
    }
  .dropdown{
    display: block;
  }
  #icon {
    display: block;
    margin-right: 10px;
  }