Aylantirganda navigatsiya panelini yashirish
CSS va JavaScript yordamida sahifa pastga aylantirilganda navigatsiya menyusini yashirishni o‘rganing.
Pastga aylantirganda navigatsiya panelini qanday yashirish mumkin
1-qadam) HTML qo‘shing:
Navigatsiya panelini yarating:
Misol
<div id="navbar">
<a href="#home">Home</a>
<a href="#news">News</a>
<a href="#contact">Contact</a>
</div>
2-qadam) CSS qo‘shing:
Navigatsiya paneliga uslub bering:
Misol
#navbar {
background-color: #333; /* Black background color */
position: fixed; /* Make it stick/fixed */
top: 0; /* Stay on top */
width: 100%; /* Full width */
transition: top 0.3s; /* Transition effect when sliding down (and up) */
}
/* Style the navbar links */
#navbar a {
float: left;
display: block;
color: white;
text-align: center;
padding: 15px;
text-decoration: none;
}
#navbar a:hover {
background-color: #ddd;
color: black;
}
3-qadam) JavaScript qo‘shing:
Misol
/* When the user scrolls down, hide the navbar. When the user scrolls up, show the navbar */
var prevScrollpos = window.pageYOffset;
window.onscroll = function() {
var currentScrollPos = window.pageYOffset;
if (prevScrollpos > currentScrollPos) {
document.getElementById("navbar").style.top = "0";
} else {
document.getElementById("navbar").style.top = "-50px";
}
prevScrollpos = currentScrollPos;
}
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