JQuery fixed floating sidebar Implementation ideas and code, jquery ideas

Source: Internet
Author: User

JQuery fixed floating sidebar Implementation ideas and code, jquery ideas

This function is now widely used. If the page is relatively high, when the scroll bar is dragged to the bottom of the page, a fixed DIV box following the browser will appear on the sidebar. The idea is as follows: first, obtain the distance from the DIV to be followed to the top of the page, and then determine that when the browser's rolling distance is greater than the distance from the DIV itself to the top, add the CSS attribute fixed.

The Code is as follows:

HTML code:

<div id="header">header</div><div id="sidebarWrap"><div id="sidebar">Sidebar</div></div><div id="main">Main</div><div id="footer">footer</div>

CSS code:

body {margin: 10px auto;font-family: sans-serif;width: 500px;}div {border-radius: 5px;box-shadow: 1px 2px 5px rgba(0,0,0,0.3);border: 1px solid #ccc;padding: 5px;}#sidebarWrap {height: 400px;width: 210px;float: right;position: relative;box-shadow: none;border: none;margin: 0;padding: 0;}#main {width: 270px;height: 4000px;}#footer {clear: both;margin: 10px 0;}#sidebar {width: 200px;height: 300px;position: absolute;}#header {height: 200px;margin-bottom: 10px;}#sidebar.fixed {position: fixed;top: 0;}#footer { height: 600px; }#footer { height: 600px; }

JavaScript code:

$(function() {var top = $('#sidebar').offset().top - parseFloat($('#sidebar').css('marginTop').replace(/auto/, 0));var footTop = $('#footer').offset().top - parseFloat($('#footer').css('marginTop').replace(/auto/, 0));var maxY = footTop - $('#sidebar').outerHeight();$(window).scroll(function(evt) {var y = $(this).scrollTop();if (y > top) {if (y < maxY) {$('#sidebar').addClass('fixed').removeAttr('style');} else {$('#sidebar').removeClass('fixed').css({position: 'absolute',top: (maxY - top) + 'px'});}} else {$('#sidebar').removeClass('fixed');}});});

JS Code (sharding similar to Jiathis on the sidebar)

Copy the file directly on the JiaThis website. You can customize some of the attributes. You can ask Customer Service

Html (js, jquery) Implementation of scaling sidebar

Send it to your mailbox and run layout.html directly to see if it is the effect you want!

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