How to fix navigation bar in page via jQuery
Today I will share with you a case: how to fix the navigation bar in the page. It has certain reference value and I hope it will be helpful to everyone's learning.
In addition to using the familiar html and CSS for layout when making the navigation bar, we also need to use the scrollTop and scrollLeft knowledge in jQuery. They are mainly used to set or get the position of the vertical scroll bar. According to the page being The height of the curl is used to fix the position of the navigation bar. I will share it with you in detail in the article.
scrollTop
Returns or sets the vertical position of the scroll bar of the matching element.
$(selector).scrollTop(offset)
offset: Specifies the offset relative to the top of the scroll bar, in pixels, you can write or not write
Example: Get the height of the page being curled
$(window).scrollTop();
scrollLeft
Returns or sets the horizontal position of the scroll bar of the matching element.
The horizontal position refers to the number of pixels scrolled from its left side.
When the scroll bar is at the far left, the position is 0.
$(selector).scrollLeft(position)
position: Specifies the new position in pixels, you can write or not write
The horizontal position of the scroll bar refers to the number of pixels scrolled from its left side. When the scroll bar is at the far left, the position is 0.
Example: Get the width of the page being curled
$(window).scrollLeft();
Case sharing: Fixed Baidu search bar
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
*{
padding:0;
margin:0;
}
.all{
width:100%;
height:2000px;
}
.box{
width:100%;
height:75px;
background-color: #fff;
border: 1px solid #ccc;
position: relative;
}
.sousu-left img{
position: absolute;
top:20.5%;
left:28.45%;
}
.box1{width:536px;
height: 41px;
border:1px solid #ccc;
margin:16px auto;
}
.sousu-right span{
width:140px;
height:41px;
border:1px solid #ccc;
color:#fff;
background-color:rgb(51,136,255);
text-align: center;
line-height: 41px;
font-size:14px;
position: absolute;
right:28.64%;
top:19.69%;
}
.fixed{
position: fixed;
left:0;
top:0;
}
</style>
</head>
<body>
<div>
<div>
<!-- 定义左边和右边两个盒子 -->
<div>
<img src="images/logo_top_86d58ae1.png">
<div></div>
</div>
<div>
<span>百度一下</span>
</div>
</div>
</div>
<script src="jquery/jquery-1.12.4.js"></script>
<script>
$(function(){
$(window).scroll(function(){
if($(window).scrollTop()>=$(".box").height())判断当卷曲的高度大于box高度时给box添加一个fixed属性，使它固定在顶部
{
$(".box").addClass("fixed");
}
else{
$(".box").removeClass("fixed");如果小于则移除class属性
}
})
})
</script>
</body>
</html>
Summary: The above is the entire content of this article. I hope that through this case everyone will have a clearer understanding of the application of scrollTop and scrollLeft
The above is the detailed content of How to fix navigation bar in page via jQuery. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1378
52
How do I create and publish my own JavaScript libraries?
Mar 18, 2025 pm 03:12 PM
Article discusses creating, publishing, and maintaining JavaScript libraries, focusing on planning, development, testing, documentation, and promotion strategies.
How do I optimize JavaScript code for performance in the browser?
Mar 18, 2025 pm 03:14 PM
The article discusses strategies for optimizing JavaScript performance in browsers, focusing on reducing execution time and minimizing impact on page load speed.
What should I do if I encounter garbled code printing for front-end thermal paper receipts?
Apr 04, 2025 pm 02:42 PM
Frequently Asked Questions and Solutions for Front-end Thermal Paper Ticket Printing In Front-end Development, Ticket Printing is a common requirement. However, many developers are implementing...
How do I debug JavaScript code effectively using browser developer tools?
Mar 18, 2025 pm 03:16 PM
The article discusses effective JavaScript debugging using browser developer tools, focusing on setting breakpoints, using the console, and analyzing performance.
Who gets paid more Python or JavaScript?
Apr 04, 2025 am 12:09 AM
There is no absolute salary for Python and JavaScript developers, depending on skills and industry needs. 1. Python may be paid more in data science and machine learning. 2. JavaScript has great demand in front-end and full-stack development, and its salary is also considerable. 3. Influencing factors include experience, geographical location, company size and specific skills.
How do I use source maps to debug minified JavaScript code?
Mar 18, 2025 pm 03:17 PM
The article explains how to use source maps to debug minified JavaScript by mapping it back to the original code. It discusses enabling source maps, setting breakpoints, and using tools like Chrome DevTools and Webpack.
The difference in console.log output result: Why are the two calls different?
Apr 04, 2025 pm 05:12 PM
In-depth discussion of the root causes of the difference in console.log output. This article will analyze the differences in the output results of console.log function in a piece of code and explain the reasons behind it. �...
TypeScript for Beginners, Part 2: Basic Data Types
Mar 19, 2025 am 09:10 AM
Once you have mastered the entry-level TypeScript tutorial, you should be able to write your own code in an IDE that supports TypeScript and compile it into JavaScript. This tutorial will dive into various data types in TypeScript. JavaScript has seven data types: Null, Undefined, Boolean, Number, String, Symbol (introduced by ES6) and Object. TypeScript defines more types on this basis, and this tutorial will cover all of them in detail. Null data type Like JavaScript, null in TypeScript
