底部悬浮通栏可以关闭广告位详解（一）
效果一：
1.首先，整个底部悬浮通栏广告是固定在浏览器的底部，随着浏览器的滚动，底部悬浮广告始终在浏览器窗口中。这里有几个关键点：通栏，固定，黑色。
所以:首先我们必须给悬浮通栏广告整体一个100%的宽度，其次给它设定固定定位，固定在浏览器底部，背景色为黑色，透明度为0.7。
<span style="color: #008080;">1</span> <span style="color: #800000;">.footfixed</span>{
<span style="color: #008080;">2</span> <span style="color: #ff0000;">width</span>:<span style="color: #0000ff;">100%</span>;
<span style="color: #008080;">3</span> <span style="color: #ff0000;">height</span>:<span style="color: #0000ff;">140px</span>; <span style="color: #008000;">/*</span><span style="color: #008000;"> 图片大小，宽度必须100% </span><span style="color: #008000;">*/</span>
<span style="color: #008080;">4</span> <span style="color: #ff0000;">position</span>:<span style="color: #0000ff;">fixed</span>;
<span style="color: #008080;">5</span> <span style="color: #ff0000;">bottom</span>:<span style="color: #0000ff;">0</span>; <span style="color: #008000;">/*</span><span style="color: #008000;">固定定位，固定在浏览器底部。</span><span style="color: #008000;">*/</span>
<span style="color: #008080;">6</span> <span style="color: #ff0000;">background</span>:<span style="color: #0000ff;"> #081628</span>;
<span style="color: #008080;">7</span> <span style="color: #ff0000;">opacity</span>:<span style="color: #0000ff;"> .7</span>; <span style="color: #008000;">/*</span><span style="color: #008000;">Chrome、Safari、Firefox、Opera </span><span style="color: #008000;">*/</span><span style="color: #ff0000;"> <br> filter</span>:<span style="color: #0000ff;">alpha(opacity=70)</span>;<span style="color: #008000;">/*</span><span style="color: #008000;"> 针对 IE8 以及更早的版本 </span><span style="color: #008000;">*/</span>
<span style="color: #008080;">8</span> }Copy after login
2. 底部悬浮通栏广告的图片，可以看出比背景要高（背景height:140px，内图height: 218px）
且整体内容部分居中。
<span style="color: #008080;">1</span> <span style="color: #800000;">.fimg </span>{
<span style="color: #008080;">2</span> <span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;"> 218px</span>; <span style="color: #008000;">/*</span><span style="color: #008000;">注意此处图片高度高于140px</span><span style="color: #008000;">*/</span>
<span style="color: #008080;">3</span> <span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;"> 1190px</span>;
<span style="color: #008080;">4</span> <span style="color: #ff0000;"> margin</span>:<span style="color: #0000ff;"> 0px auto</span>; <span style="color: #008000;">/*</span><span style="color: #008000;">整体内容部分居中</span><span style="color: #008000;">*/</span>
<span style="color: #008080;">5</span> }Copy after login
然而由于底部悬浮广告内容部分高度218px大于设定的父元素的高度140px，高度相差78px
产生如下效果，图片没能完成的展现出来：
这需要图片上移78px，需要对整个底部悬浮广告内容部分整体做相对定位
<span style="color: #008080;">1</span> <span style="color: #800000;">.fimg </span>{
<span style="color: #008080;">2</span> <span style="color: #ff0000;"> position</span>:<span style="color: #0000ff;"> relative</span>; <span style="color: #008000;">/*</span><span style="color: #008000;">父元素相对定位</span><span style="color: #008000;">*/</span>
<span style="color: #008080;">3</span> <span style="color: #ff0000;"> top</span>:<span style="color: #0000ff;">-78px</span>;
<span style="color: #008080;">4</span> }Copy after login
结果：
这里有个问题：
图片不是很清楚，因为加了透明度。
解决这个问题，用一个div来设置背景，而不在.footfixed里设置背景色。
1 div class="ftbj">div>
<span style="color: #008080;"> 1</span> <span style="color: #800000;">.ftbj</span>{
<span style="color: #008080;"> 2</span> <span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">100%</span>;
<span style="color: #008080;"> 3</span> <span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100%</span>;
<span style="color: #008080;"> 4</span> <span style="color: #ff0000;"> position</span>:<span style="color: #0000ff;"> absolute</span>;
<span style="color: #008080;"> 5</span> <span style="color: #ff0000;"> top</span>:<span style="color: #0000ff;"> 0</span>;
<span style="color: #008080;"> 6</span> <span style="color: #ff0000;"> left</span>:<span style="color: #0000ff;"> 0</span>;
<span style="color: #008080;"> 7</span> <span style="color: #ff0000;"> background</span>:<span style="color: #0000ff;">#081628</span>;
<span style="color: #008080;"> 8</span> <span style="color: #ff0000;"> opacity</span>:<span style="color: #0000ff;"> .7</span>;<span style="color: #008000;">/*</span><span style="color: #008000;">Chrome、Safari、Firefox、Opera </span><span style="color: #008000;">*/</span><span style="color: #008080;"> <br> 9</span> <span style="color: #ff0000;"> filter</span>:<span style="color: #0000ff;"> alpha(opacity=70)</span>;}<span style="color: #008000;">/*</span><span style="color: #008000;"> 针对 IE8 以及更早的版本 </span><span style="color: #008000;">*/</span>
<span style="color: #008080;">10</span> <span style="color: #800000;">.footfixed</span>{
<span style="color: #008080;">11</span> <span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100%</span>;
<span style="color: #008080;">12</span> <span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">140px</span>; <span style="color: #008000;">/*</span><span style="color: #008000;"> 图片大小，宽度必须100% </span><span style="color: #008000;">*/</span>
<span style="color: #008080;">13</span> <span style="color: #ff0000;"> position</span>:<span style="color: #0000ff;">fixed</span>;
<span style="color: #008080;">14</span> <span style="color: #ff0000;"> bottom</span>:<span style="color: #0000ff;">0</span>; <span style="color: #008000;">/*</span><span style="color: #008000;">固定定位，固定在浏览器底部。</span><span style="color: #008000;">*/</span>
<span style="color: #008080;">15</span> }Copy after login
这样图片效果：
这样就清楚多了。
3.其中关闭按钮的效果：
首先按钮是由图片通过定位实现固定在整个底部悬浮广告图片右上角。需设定图片大小，图片引入路径，需要对整个底部悬浮广告内容部分整体做相对定位，关闭按钮是做绝对定位
<span style="color: #008080;"> 1</span> <span style="color: #800000;">.fimg </span>{
<span style="color: #008080;"> 2</span> <span style="color: #ff0000;"> position</span>:<span style="color: #0000ff;"> relative</span>; <span style="color: #008000;">/*</span><span style="color: #008000;">父元素相对定位</span><span style="color: #008000;">*/</span>
<span style="color: #008080;"> 3</span> }
<span style="color: #008080;"> 4</span> <span style="color: #800000;">.close </span>{
<span style="color: #008080;"> 5</span> <span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;"> 33px</span>;
<span style="color: #008080;"> 6</span> <span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;"> 33px</span>; <span style="color: #008000;">/*</span><span style="color: #008000;"> 图片大小 </span><span style="color: #008000;">*/</span>
<span style="color: #008080;"> 7</span> <span style="color: #ff0000;"> background</span>:<span style="color: #0000ff;"> url(images/close.png) no-repeat center center</span>; <span style="color: #008000;">/*</span><span style="color: #008000;">图片引入路径 </span><span style="color: #008000;">*/</span>
<span style="color: #008080;"> 8</span> <span style="color: #ff0000;"> position</span>:<span style="color: #0000ff;"> absolute</span>;
<span style="color: #008080;"> 9</span> <span style="color: #ff0000;"> right</span>:<span style="color: #0000ff;"> 15px</span>;
<span style="color: #008080;">10</span> <span style="color: #ff0000;"> top</span>:<span style="color: #0000ff;"> 85px</span>; <span style="color: #008000;">/*</span><span style="color: #008000;">通过定位实现固定固定在整个底部悬浮广告图片右上角 </span><span style="color: #008000;">*/</span>
<span style="color: #008080;">11</span> }Copy after login
其次，鼠标移到关闭按钮上，有小手出现，关闭按钮旋转。
为了产生动画效果，加transition
<span style="color: #008080;"> 1</span> <span style="color: #800000;">.close </span>{
<span style="color: #008080;"> 2</span> <span style="color: #ff0000;"> transition</span>:<span style="color: #0000ff;"> .5s</span>;
<span style="color: #008080;"> 3</span> <span style="color: #ff0000;"> cursor</span>:<span style="color: #0000ff;"> pointer</span>; <span style="color: #008000;">/*</span><span style="color: #008000;">通过定位实现固定固定在整个底部悬浮广告图片右上角 </span><span style="color: #008000;">*/</span>
<span style="color: #008080;"> 4</span> }
<span style="color: #008080;"> 5</span> <span style="color: #800000;">.close:hover </span>{
<span style="color: #008080;"> 6</span> <span style="color: #ff0000;"> transform</span>:<span style="color: #0000ff;"> rotate(180deg)</span>;
<span style="color: #008080;"> 7</span> <span style="color: #ff0000;"> -ms-transform</span>:<span style="color: #0000ff;"> rotate(180deg)</span>; <span style="color: #008000;">/*</span><span style="color: #008000;"> IE 9 </span><span style="color: #008000;">*/</span>
<span style="color: #008080;"> 8</span> <span style="color: #ff0000;"> -moz-transform</span>:<span style="color: #0000ff;"> rotate(180deg)</span>; <span style="color: #008000;">/*</span><span style="color: #008000;"> Firefox </span><span style="color: #008000;">*/</span>
<span style="color: #008080;"> 9</span> <span style="color: #ff0000;"> -webkit-transform</span>:<span style="color: #0000ff;"> rotate(180deg)</span>; <span style="color: #008000;">/*</span><span style="color: #008000;"> Safari 和 Chrome </span><span style="color: #008000;">*/</span>
<span style="color: #008080;">10</span> <span style="color: #ff0000;"> -o-transform</span>:<span style="color: #0000ff;"> rotate(180deg)</span>; <span style="color: #008000;">/*</span><span style="color: #008000;"> Opera </span><span style="color: #008000;">*/</span>
<span style="color: #008080;">11</span> } <span style="color: #008000;">/*</span><span style="color: #008000;">旋转 图片</span>*/Copy after login
Copy after login
然后是点击关闭按钮，广告向下消失，侧边出现效果
<span style="color: #008080;">1</span> <span style="color: #800000;">#fimg-min</span>{
<span style="color: #008080;">2</span> <span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;"> 80px</span>;
<span style="color: #008080;">3</span> <span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;"> 140px</span>; <span style="color: #008000;">/*</span><span style="color: #008000;"> 图片大小 </span><span style="color: #008000;">*/</span>
<span style="color: #008080;">4</span> <span style="color: #ff0000;"> position</span>:<span style="color: #0000ff;"> fixed</span>;
<span style="color: #008080;">5</span> <span style="color: #ff0000;"> bottom</span>:<span style="color: #0000ff;"> 0px</span>;
<span style="color: #008080;">6</span> <span style="color: #ff0000;"> left</span>:<span style="color: #0000ff;"> 0px</span>; <span style="color: #008000;">/*</span><span style="color: #008000;">定位</span><span style="color: #008000;">*/</span>
<span style="color: #008080;">7</span> <span style="color: #ff0000;"> display</span>:<span style="color: #0000ff;"> none</span>; <span style="color: #008000;">/*</span><span style="color: #008000;">隐藏</span><span style="color: #008000;">*/</span>
<span style="color: #008080;">8</span> <span style="color: #ff0000;"> cursor</span>:<span style="color: #0000ff;"> pointer</span>; <span style="color: #008000;">/*</span><span style="color: #008000;">小手 </span><span style="color: #008000;">*/</span>
<span style="color: #008080;">9</span> }Copy after login
点击图中圈出来的图标，底部广告再次出现
<span style="color: #008080;"> 1</span> <script>
<span style="color: #008080;"> 2 $(document).ready(<span style="color: #0000ff;">function<span style="color: #000000;">(){
<span style="color: #008080;"> 3 $(".close").click(<span style="color: #0000ff;">function<span style="color: #000000;"> () {
<span style="color: #008080;"> 4 $('.footfixed'<span style="color: #000000;">).animate(
<span style="color: #008080;"> 5 {height: '10px', opacity: '0.4'}, "slow", <span style="color: #0000ff;">function<span style="color: #000000;"> () {
<span style="color: #008080;"> 6 $('.footfixed'<span style="color: #000000;">).hide();
<span style="color: #008080;"> 7 $('#fimg-min'<span style="color: #000000;">).show();
<span style="color: #008080;"> 8 <span style="color: #000000;"> });
<span style="color: #008080;"> 9 <span style="color: #000000;"> });
<span style="color: #008080;">10 $('#fimg-min').click(<span style="color: #0000ff;">function<span style="color: #000000;">(){
<span style="color: #008080;">11 $('.footfixed').show().css({height:'140px',opacity:'1'<span style="color: #000000;">});
<span style="color: #008080;">12 $('#fimg-min'<span style="color: #000000;">).hide();
<span style="color: #008080;">13 <span style="color: #000000;"> });
<span style="color: #008080;">14 <span style="color: #000000;">});
<span style="color: #008080;">15 </script>
<span style="color: #008080;">16</span> Copy after login
注：在ie9以下浏览器中关闭按钮图片旋转效果未能实现。
注意：本文为原创，转载请以链接形式标明本文地址 ，谢谢合作。
本文地址：http://www.cnblogs.com/wanghuih/p/5546441.html
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
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
Repo: How To Revive Teammates
1 months ago
By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago
By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months ago
By 尊渡假赌尊渡假赌尊渡假赌
How Long Does It Take To Beat Split Fiction?
4 weeks ago
By DDD
R.E.P.O. Save File Location: Where Is It & How to Protect It?
4 weeks ago
By DDD
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
Difficulty in updating caching of official account web pages: How to avoid the old cache affecting the user experience after version update?
Mar 04, 2025 pm 12:32 PM
The official account web page update cache, this thing is simple and simple, and it is complicated enough to drink a pot of it. You worked hard to update the official account article, but the user still opened the old version. Who can bear the taste? In this article, let’s take a look at the twists and turns behind this and how to solve this problem gracefully. After reading it, you can easily deal with various caching problems, allowing your users to always experience the freshest content. Let’s talk about the basics first. To put it bluntly, in order to improve access speed, the browser or server stores some static resources (such as pictures, CSS, JS) or page content. Next time you access it, you can directly retrieve it from the cache without having to download it again, and it is naturally fast. But this thing is also a double-edged sword. The new version is online,
How to efficiently add stroke effects to PNG images on web pages?
Mar 04, 2025 pm 02:39 PM
This article demonstrates efficient PNG border addition to webpages using CSS. It argues that CSS offers superior performance compared to JavaScript or libraries, detailing how to adjust border width, style, and color for subtle or prominent effect
What is the purpose of the <datalist> element?
Mar 21, 2025 pm 12:33 PM
The article discusses the HTML <datalist> element, which enhances forms by providing autocomplete suggestions, improving user experience and reducing errors.Character count: 159
How do I use HTML5 form validation attributes to validate user input?
Mar 17, 2025 pm 12:27 PM
The article discusses using HTML5 form validation attributes like required, pattern, min, max, and length limits to validate user input directly in the browser.
What is the purpose of the <progress> element?
Mar 21, 2025 pm 12:34 PM
The article discusses the HTML <progress> element, its purpose, styling, and differences from the <meter> element. The main focus is on using <progress> for task completion and <meter> for stati
What is the purpose of the <meter> element?
Mar 21, 2025 pm 12:35 PM
The article discusses the HTML <meter> element, used for displaying scalar or fractional values within a range, and its common applications in web development. It differentiates <meter> from <progress> and ex
What are the best practices for cross-browser compatibility in HTML5?
Mar 17, 2025 pm 12:20 PM
Article discusses best practices for ensuring HTML5 cross-browser compatibility, focusing on feature detection, progressive enhancement, and testing methods.
What is the purpose of the <iframe> tag? What are the security considerations when using it?
Mar 20, 2025 pm 06:05 PM
The article discusses the <iframe> tag's purpose in embedding external content into webpages, its common uses, security risks, and alternatives like object tags and APIs.
