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Sidebar Dropdown Menu using HTML, CSS And JavaScript Code
Sidebar Dropdown Menu
| Code by | Eyad Alasseh |
| Project Download | Link Available Below |
| Language used | HTML,CSS and JavaScript |
| External link / Dependencies | YES |
| Responsive | YES |
Live Preview Of Sidebar Dropdown Menu:-
Html Code For Sidebar Dropdown Menu:-
HTML is used for creating the layout of the website. So First we develop the layout then styling is the second thing, at last, we will add features to the button(on clicking the button menu opens ).
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Inside the body tag, you can add the following content.
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<div class="sidenav">
<a href="#about">About</a>
<a href="#services">Services</a>
<a href="#clients">Clients</a>
<a href="#contact">Contact</a>
<button class="dropdown-btn">Dropdown
<i class="fa fa-caret-down"></i>
</button>
<div class="dropdown-container">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
<a href="#contact">Search</a>
</div>
<div class="main">
<h2>Sidebar Dropdown</h2>
<p>Click on the dropdown button to open the dropdown menu inside the side navigation.</p>
<p>This sidebar is of full height (100%) and always shown.</p>
<p>Some random text..</p>
</div>
Html Output:-
Css Code For Sidebar Dropdown Menu:-
CSS is used for styling/decoration of the webpage color,alignment,font or others things related to styling.Without CSS, functionalities can be added to the javascript,CSS is used only for styling.
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/* Fixed sidenav, full height */
.sidenav {
height: 100%;
width: 200px;
position: fixed;
z-index: 1;
top: 0;
left: 0;
background-color: #111;
overflow-x: hidden;
padding-top: 20px;
} /* Style the sidenav links and the dropdown button */
.sidenav a,
.dropdown-btn {
padding: 6px 8px 6px 16px;
text-decoration: none;
font-size: 20px;
color: #818181;
display: block;
border: none;
background: none;
width: 100%;
text-align: left;
cursor: pointer;
outline: none;
} /* On mouse-over */
.sidenav a:hover,
.dropdown-btn:hover {
color: #f1f1f1;
} /* Main content */
.main {
margin-left: 200px; /* Same as the width of the sidenav */
font-size: 20px; /* Increased text to enable scrolling */
padding: 0px 10px;
} /* Add an active class to the active dropdown button */
.active {
background-color: green;
color: white;
} /* Dropdown container (hidden by default). Optional: add a lighter background color and some left padding to change the design of the dropdown content */
.dropdown-container {
display: none;
background-color: #262626;
padding-left: 8px;
} /* Optional: Style the caret down icon */
.fa-caret-down {
float: right;
padding-right: 8px;
}
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Step 1: Now using the class selector (.sidenav) we will first set the width and height of our side navbar. The height is set as 100% and the width is set as 200px. Now using the position property we will set the position as “fixed” and using the z-index property we will set the z-index as “1” and the background color of our navbar is set as “black”
/* Fixed sidenav, full height */
.sidenav {
height: 100%;
width: 200px;
position: fixed;
z-index: 1;
top: 0;
left: 0;
background-color: #111;
overflow-x: hidden;
padding-top: 20px;
}
Step 2: Now that we have the padding attribute, we will style the navigation links and dropdown button. We’re going to use the width property to set the width to “100%” while keeping the display set to “block.” A “pointer” cursor is the default.
.sidenav a,
.dropdown-btn {
padding: 6px 8px 6px 16px;
text-decoration: none;
font-size: 20px;
color: #818181;
display: block;
border: none;
background: none;
width: 100%;
text-align: left;
cursor: pointer;
outline: none;
}
Step 3: Using the class selector (.main) and the margin-left property, we will set the margin to “200px,” add 0px of padding to the top and bottom, and set the left margin to “10px.”
/* Main content */
.main {
margin-left: 200px;
/* Same as the width of the sidenav */
font-size: 20px;
/* Increased text to enable scrolling */
padding: 0px 10px;
}
/* Add an active class to the active dropdown button */
.active {
background-color: green;
color: white;
}
/* Dropdown container (hidden by default). Optional: add a lighter background color and some left padding to change the design of the dropdown content */
.dropdown-container {
display: none;
background-color: #262626;
padding-left: 8px;
}
/* Optional: Style the caret down icon */
.fa-caret-down {
float: right;
padding-right: 8px;
}
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Css Output:
Javascript CodeFor Sidebar Dropdown Menu:-
Still, after implementing the CSS and HTML our buttons are not working this is because functionalities to any element in HTML can be added through Javascript only and till now we are not added javascript code to the code.
We are some basic concepts of DOM(Document-Object Model) for tagging the element and styling it through js whenever I click the button.
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//* Loop through all dropdown buttons to toggle between hiding and showing its dropdown content - This allows the user to have multiple dropdowns without any conflict */
var dropdown = document.getElementsByClassName("dropdown-btn");
var i;
for (i = 0; i < dropdown.length; i++) {
dropdown[i].addEventListener("click", function() {
this.classList.toggle("active");
var dropdownContent = this.nextElementSibling;
if (dropdownContent.style.display === "block") {
dropdownContent.style.display = "none";
} else {
dropdownContent.style.display = "block";
}
});
}
Final Output Of Sidebar Dropdown Menu
Video Output:
Which code editor do you use for this Sidebar Dropdown Menu coding?
I personally recommend using VS Code Studio, it’s straightforward and easy to use.
is this project responsive or not?
Yes! this project is a responsive project.
Do you use any external links to create this project?
Yes!
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