JS lets the menu bar always hover over the top, classic code

Source: Internet
Author: User

JS lets the menu bar always hover over the top, classic code


Very simple, you just need to put the following code in JS: $ (function () {
Gets the distance to locate the element from the top of the browser
var NAVH = $ (". Menu"). Offset (). Top;
Scroll bar Events
$ (window). Scroll (function () {
Get the sliding distance of the scroll bar
var Scroh = $ (this). ScrollTop ();
The sliding distance of the scrollbar is greater than or equal to the distance of the anchor element from the top of the browser, fixed, and not fixed
if (SCROH>=NAVH) {
$ (". Menu"). css ({"Position": "Fixed", "top": 0, "left": 0});
}else if (SCROH<NAVH) {
$ (". Menu"). css ({"position": "Static", "margin": "0 Auto"});
}
Console.log (SCROH==NAVH);
})
})
The above. Menu is the class of the menu bar

You can then introduce jquery.min.js

eg

The menu bar always floats at the top of the
var NAVH = $ (". Trade-tab-bot"). Offset (). top;//Gets the distance to locate the element from the top of the browser
Scroll bar Events
$ (window). Scroll (function () {
Get the sliding distance of the scroll bar
var Scroh = $ (this). ScrollTop ();
The sliding distance of the scrollbar is greater than or equal to the distance of the anchor element from the top of the browser, fixed, and not fixed
if (SCROH>=NAVH) {
$ (". Trade-tab-bot"). css ({"Position": "Fixed", "top": 0, "left": 0, "Z-index": +, "margin": "0 Auto", "width": "100%"});
}else if (SCROH<NAVH) {
$ (". Trade-tab-bot"). css ({"position": "relative", "margin": "0 Auto"});
}
Console.log (SCROH==NAVH);
});

JS lets the menu bar always hover over the top, classic code

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.