HTML+CSS+JavaScript实现书本翻页效果
（图1）
（图2）
（图3）
当鼠标悬停在书本边缘是会有一个书页准备翻页的动画（如图3），然后在点击左右两侧的按钮时书本会翻页（如图1）（这里要是能将左右两侧的按钮效果作用在书页上就更好了）最终的效果如图2（本人js初学者，如有需要用到js代码，请各位答主能做好备注，不胜感激）
题注这个实际就是jBooklet翻书效果。源代码提取出来如下
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>jquery实现左右翻书效果</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<base href="https://www.jq22.com/demo/jquery-fanshu-150325215701/" />
<script src="https://www.jq22.com/jquery/1.4.4/jquery.min.js"></script>
<script src="booklet/jquery.easing.1.3.js" type="text/javascript"></script>
<script src="booklet/jquery.booklet.1.1.0.min.js" type="text/javascript"></script>
<link href="booklet/jquery.booklet.1.1.0.css" type="text/css" rel="stylesheet" media="screen" />
<link rel="stylesheet" href="css/style.css" type="text/css" media="screen" />
<script src="cufon/cufon-yui.js" type="text/javascript"></script>
<script src="cufon/ChunkFive_400.font.js" type="text/javascript"></script>
<script src="cufon/Note_this_400.font.js" type="text/javascript"></script>
<script type="text/javascript">/*
Cufon.replace('h1,p,.b-counter');
Cufon.replace('.book_wrapper a', {hover:true});
Cufon.replace('.title', {textShadow: '1px 1px #C59471', fontFamily:'ChunkFive'});
Cufon.replace('.reference a', {textShadow: '1px 1px #C59471', fontFamily:'ChunkFive'});
Cufon.replace('.loading', {textShadow: '1px 1px #000', fontFamily:'ChunkFive'});*/
</script>
</head>
<body>
<div class="book_wrapper">
<a id="next_page_button"></a>
<a id="prev_page_button"></a>
<div id="loading" class="loading">Loading pages...</div>
<div id="mybook" style="display:none;">
<div class="b-load">
<div>
<img src="images/1.jpg" alt="" />
<h1>Slider Gallery中文</h1>
<p>
This tutorial is about creating a creative gallery with a
slider for the thumbnails. The idea is to have an expanding
thumbnails area which opens once an album is chosen.
The thumbnails will scroll to the end and move back to
the first image. The user can scroll through the thumbnails
by using the slider controls. When a thumbnail is clicked,
it moves to the center and the full image preview opens.
</p>
<a href="#" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
<div>
<img src="images/2.jpg" alt="" />
<h1>Animated Portfolio Gallery</h1>
<p>
Today we will create an animated portfolio gallery with jQuery.
The gallery will contain a scroller for thumbnails and a
content area where we will display details about the portfolio
item. The image can be enlarged by clicking on it, making
it appear as an overlay.
</p>
<a href="#" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
<div>
<img src="images/3.jpg" alt="" />
<h1>Annotation Overlay Effect</h1>
<p>
Today we will create a simple overlay effect to display annotations in e.g. portfolio
items of a web designers portfolio. We got the idea from the wonderful
portfolio of www.rareview.com where Flash is used to create the
effect. We will use jQuery.
</p>
<a href="#" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
<div>
<img src="images/4.jpg" alt="" />
<h1>Bubbleriffic Image Gallery</h1>
<p>
In this tutorial we will create a bubbly image gallery that
shows your images in a unique way. The idea is to show the
thumbnails of albums in a rounded fashion allowing the
user to scroll them automatically by moving the mouse.
Clicking on a thumbnail will zoom in a big circle and
the full image which will be automatically resized to
fit into the screen.
</p>
<a href="#" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
<div>
<img src="images/5.jpg" alt="" />
<h1>Collapsing Site Navigation</h1>
<p>
Today we will create a collapsing menu that contains vertical
navigation bars and a slide out content area. When hovering
over a menu item, an image slides down from the top and a
submenu slides up from the bottom. Clicking on one of the
submenu items will make the whole menu collapse like a card
deck and the respective content area will slide out.
</p>
<a href="https://www.jq22.com" target="_blank" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
<div>
<img src="images/6.jpg" alt="" />
<h1>Custom Animation Banner</h1>
<p>
In today’s tutorial we will be creating a custom animation banner with jQuery.
The idea is to have different elements in a banner that will
animate step-wise in a custom way.
</p>
<p>
We will be using the jQuery Easing Plugin and the jQuery 2D
Transform Plugin to create some nifty animations.
</p>
<a href="#" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
<div>
<img src="images/7.jpg" alt="" />
<h1>Full Page Image Gallery</h1>
<p>
In this tutorial we are going to create a stunning full page
gallery with scrollable thumbnails and a scrollable full
screen preview. The idea is to have a thumbnails bar at
the bottom of the page that scrolls automatically when
the user moves the mouse. When a thumbnail is clicked,
it moves to the center of the page and the full screen
image is loaded in the background.
</p>
<a href="#" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
<div>
<img src="images/8.jpg" alt="" />
<h1>Hover Slide Effect</h1>
<p>
Today we will create a neat effect with some images using
jQuery. The main idea is to have an image area with several
images that slide out when we hover over them, revealing
other images. The sliding effect will be random, i.e.
the images will slide to the top or bottom, left or
right, fading out or not. When we click on any area,
all areas will slide their images out.
</p>
<a href="#" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
<div>
<img src="images/9.jpg" alt="" />
<h1>Merging Image Boxes</h1>
<p>
Today we will show you a nice effect for images with jQuery.
The idea is to have a set of rotated thumbnails that,
once clicked, animate to form the selected image.
You can navigate through the images with previous
and next buttons and when the big image gets clicked
it will scatter into the little box shaped thumbnails again.
</p>
<a href="#" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
<div>
<img src="images/10.jpg" alt="" />
<h1>Compact News Previewer</h1>
<p>
Today we will create a news previewer that let’s you
show your latest articles or news in a compact way.
The news previewer will show some list of articles
on the left side and the preview of the article with a
longer description on the right. Once a news on the left
is clicked, the preview will slide in.
</p>
<a href="#" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
<div>
<img src="images/11.jpg" alt="" />
<h1>Overlay Effect Menu</h1>
<p>
In this tutorial we are going to create a simple menu
that will stand out once we hover over it by covering
everything except the menu with a dark overlay.
The menu will stay white and a submenu area will
expand. We will create this effect using jQuery.
</p>
<a href="#" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
<div>
<img src="images/12.jpg" alt="" />
<h1>Polaroid Photobar Gallery</h1>
<p>
In this tutorial we are going to create an image gallery
with a Polaroid look. We will have albums that will expand
to sets of slightly rotated thumbnails that pop out on hover.
The full image will slide in from the bottom once a thumbnail
is clicked. In the full image view the user can navigate
through the pictures or simply choose another thumbnail
to be displayed.
</p>
<a href="#" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
<div>
<img src="images/13.jpg" alt="" />
<h1>Pull Out Content Panel</h1>
<p>
In this tutorial we will create a content panel that
slides out at a predefined scroll position. It will
reveal a teaser with related content and it can be
expanded to full page size to show more. A custom
slider allows to scroll through many items in the
panel.
</p>
<a href="#" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
<div>
<img src="images/14.jpg" alt="" />
<h1>Thumbnails Navigation Gallery</h1>
<p>
In this tutorial we are going to create an extraordinary
gallery with scrollable thumbnails that slide out from a
navigation. We are going to use jQuery and some CSS3
properties for the style. The main idea is to have a
menu of albums where each item will reveal a horizontal
bar with thumbnails when clicked.
</p>
<a href="#" class="article">Article</a>
<a href="#" class="demo">Demo</a>
</div>
</div>
</div>
</div>
<!-- The JavaScript -->
<script type="text/javascript">
$(function () {
var $mybook = $('#mybook');
var $bttn_next = $('#next_page_button');
var $bttn_prev = $('#prev_page_button');
var $loading = $('#loading');
var $mybook_images = $mybook.find('img');
var cnt_images = $mybook_images.length;
var loaded = 0;
//preload all the images in the book,
//and then call the booklet plugin
$mybook_images.each(function () {
var $img = $(this);
var source = $img.attr('src');
$('<img/>').load(function () {
++loaded;
if (loaded == cnt_images) {
$loading.hide();
$bttn_next.show();
$bttn_prev.show();
$mybook.show().booklet({
name: null, // name of the booklet to display in the document title bar
width: 800, // container width
height: 500, // container height
speed: 600, // speed of the transition between pages
direction: 'LTR', // direction of the overall content organization, default LTR, left to right, can be RTL for languages which read right to left
startingPage: 0, // index of the first page to be displayed
easing: 'easeInOutQuad', // easing method for complete transition
easeIn: 'easeInQuad', // easing method for first half of transition
easeOut: 'easeOutQuad', // easing method for second half of transition
closed: true, // start with the book "closed", will add empty pages to beginning and end of book
closedFrontTitle: null, // used with "closed", "menu" and "pageSelector", determines title of blank starting page
closedFrontChapter: null, // used with "closed", "menu" and "chapterSelector", determines chapter name of blank starting page
closedBackTitle: null, // used with "closed", "menu" and "pageSelector", determines chapter name of blank ending page
closedBackChapter: null, // used with "closed", "menu" and "chapterSelector", determines chapter name of blank ending page
covers: false, // used with "closed", makes first and last pages into covers, without page numbers (if enabled)
pagePadding: 10, // padding for each page wrapper
pageNumbers: true, // display page numbers on each page
hovers: true, // enables preview pageturn hover animation, shows a small preview of previous or next page on hover
overlays: true, // enables navigation using a page sized overlay, when enabled links inside the content will not be clickable
tabs: false, // adds tabs along the top of the pages
tabWidth: 60, // set the width of the tabs
tabHeight: 20, // set the height of the tabs
arrows: false, // adds arrows overlayed over the book edges
cursor: 'pointer', // cursor css setting for side bar areas
hash: false, // enables navigation using a hash string, ex: #/page/1 for page 1, will affect all booklets with 'hash' enabled
keyboard: true, // enables navigation with arrow keys (left: previous, right: next)
next: $bttn_next, // selector for element to use as click trigger for next page
prev: $bttn_prev, // selector for element to use as click trigger for previous page
menu: null, // selector for element to use as the menu area, required for 'pageSelector'
pageSelector: false, // enables navigation with a dropdown menu of pages, requires 'menu'
chapterSelector: false, // enables navigation with a dropdown menu of chapters, determined by the "rel" attribute, requires 'menu'
shadows: true, // display shadows on page animations
shadowTopFwdWidth: 166, // shadow width for top forward anim
shadowTopBackWidth: 166, // shadow width for top back anim
shadowBtmWidth: 50, // shadow width for bottom shadow
before: function () { }, // callback invoked before each page turn animation
after: function () { } // callback invoked after each page turn animation
});
Cufon.refresh();
}
}).attr('src', source);
});
});
</script>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<style>
.containerBox{
width: 100%;
height: 100vh;
overflow-y: scroll;
}
.containerBox::-webkit-scrollbar{
width: 0;
height: 0;
}
.listItem{
height: 100px;
border-radius: 20px;
margin: 10px;
background-color: #0db4ff;
text-align: center;
color: #ffffff;
}
</style>
<body>
<div class="containerBox">
<div class="listItem">1</div>
<div class="listItem">2</div>
<div class="listItem">3</div>
<div class="listItem">4</div>
<div class="listItem">5</div>
<div class="listItem">6</div>
<div class="listItem">7</div>
<div class="listItem">8</div>
<div class="listItem">9</div>
<div class="listItem">10</div>
</div>
<script>
var box = document.querySelector('.containerBox')
var contentH = box.clientHeight //可视区域的高度
var scrollHight = box.scrollHeight //获取全文高度
var scrollTop = box.scrollTop //滚动条的高度
//监听滚动
box.onscroll = function(){
if(contentH - scrollTop- scrollHight -30 <=0.5){
box.insertAdjacentHTML('beforeEnd',`<div class="listItem">12</div>`)
}
}
</script>
</body>
</html>
- 你可以看下这个问题的回答https://ask.csdn.net/questions/7770359
- 这篇博客也不错, 你可以看下HTML搭配JS(JavaScript)实现完全独立的评论组件,可移植,可复用,可读性强（附源码）
- 除此之外, 这篇博客: 【HTML+CSS+JavaScript】掌握基本编程思想，还怕什么代码？中的 2.2 变量默认值 部分也许能够解决你的问题, 你可以仔细阅读以下内容或跳转源博客中阅读:
<html> <head> <title>JavaScript</title> </head> <body> <script type="text/JavaScript"> var x; alert(x); // undefined </script> </body> </html>显示：
