Hey,
You can follow the steps below in order to have shrinking of navigation menu on scrolling the page down:
Step 1) Add HTML:
Create a navigation bar:
<div id="navbar">
<a href="#default" id="logo">CompanyLogo</a>
<div id="navbar-right">
<a class="active" href="#home">Home</a>
<a href="#contact">Contact</a>
<a href="#about">About</a>
</div>
</div>
Step 2) Add CSS:
Style the navigation bar:
/* Create a sticky/fixed navbar */
#navbar {
overflow: hidden;
background-color: #f1f1f1;
padding: 90px 10px; /* Large padding which will shrink on scroll (using JS) */
transition: 0.4s; /* Adds a transition effect when the padding is decreased */
position: fixed; /* Sticky/fixed navbar */
width: 100%;
top: 0; /* At the top */
z-index: 99;
}
/* Style the navbar links */
#navbar a {
float: left;
color: black;
text-align: center;
padding: 12px;
text-decoration: none;
font-size: 18px;
line-height: 25px;
border-radius: 4px;
}
/* Style the logo */
#navbar #logo {
font-size: 35px;
font-weight: bold;
transition: 0.4s;
}
/* Links on mouse-over */
#navbar a:hover {
background-color: #ddd;
color: black;
}
/* Style the active/current link */
#navbar a.active {
background-color: dodgerblue;
color: white;
}
/* Display some links to the right */
#navbar-right {
float: right;
}
/* Add responsiveness - on screens less than 580px wide, display the navbar vertically instead of horizontally */
@media screen and (max-width: 580px) {
#navbar {
padding: 20px 10px !important; /* Use !important to make sure that JavaScript doesn't override the padding on small screens */
}
#navbar a {
float: none;
display: block;
text-align: left;
}
#navbar-right {
float: none;
}
}
Hope this is working for you.