ZXSVVV
2015-07-23 17:31
<!DOCTYPE html>
<html>
<head>
<title>css+js预览图幻灯片</title>
<meta charset="utf-8">
<style type="text/css">
*{padding:0; margin: 0;}
body{
padding:50px 0;/*上下边距*/
background-color: #FFF;
font-size:14px;
font-family:'Avenir14px;
color:#555; Next';
-webkit-font-smooting:antialiased;
-o-font-smooting:antialiased;
-moz-font-smoooting:antialiased;
-ms-font-smooting:antialiased;/*字体抗锯齿
*/
}
.slider,
.slider .main,
.slider .main .main-i{
width: 100%;
height: 400px;
position: relative;
}
/*幻灯片区域*/
.slider .main{
overflow: hidden;
}
/*每一个幻灯片的样式*/
.slider .main .main-i{}
.slider .main .main-i img{
width: 100%;
position: absolute;/*飘浮*/
left: 0;
top: 50%;
z-index:1;
}
.slider .main .main-i .caption{
position: absolute;
right: 50%;
top: 30%;
z-index: 9;
}
.slider .main .main-i .caption h2{
font-size: 40px;
line-height: 50px;
color: #B5B5B5;
text-align: right;
}
.slider .main .main-i .caption h3{
font-size: 70px;
line-height: 70px;
color: #000000;
text-align: right;
font-family: 'Open Sans Condensed';
}
/*控制按钮区域*/
.slider .ctrl{
width: 100%;
height: 13px;
line-height: 13px;
text-align: center;
position: absolute;
left: 0;
bottom: -13px;
/*background-color: #f00;*/
}
.slider .ctrl .ctrl-i{
display: inline-block;/*定义了该属性,后面设置宽和高才会起作用*/
width: 150px;
height: 13px;
background-color: #666;
box-shadow: 0 1px 1px rgba(0,0,0,.3);
position: relative;
margin-left: 1px;
}
.slider .ctrl .ctrl-i img{
width: 100%;
position: absolute;
left: 0;
bottom: 50px;
z-index: 1;
opacity: 0;
-webkit-transition:all .2s;
-o-transition:all 0.2s;
-moz-transition:all 0.2s;
transition:all 0.2s;
}
/*hover 到控制按钮的样式*/
.slider .ctrl .ctrl-i:hover{
background-color: #f0f0f0;
}
.slider .ctrl .ctrl-i:hover img{
bottom:13px;
-webkit-box-reflect:below 0px -webkit-gradient(
linear,
left top,
left bottom,
from( transparent),
color-stop(50%, transparent),
to(rgba(255,255,255,.3))
) ;
-o-box-reflect:below 0px -webkit-gradient(
linear,
left top,
left bottom,
from( transparent),
color-stop(50%, transparent),
to(rgba(255,255,255,.3))
) ;
-moz-box-reflect:below 0px -webkit-gradient(
linear,
left top,
left bottom,
from( transparent),
color-stop(50%, transparent),
to(rgba(255,255,255,.3))
) ;
-ms-box-reflect:below 0px -webkit-gradient(
linear,
left top,
left bottom,
from( transparent),
color-stop(50%, transparent),
to(rgba(255,255,255,.3))
) ;
box-reflect:below 0px -webkit-gradient(
linear,
left top,
left bottom,
from( transparent),
color-stop(50%, transparent),
to(rgba(255,255,255,.3))
) ;
opacity: 1;
z-index: 20;
}
/*active 当前展现的状态*/
.slider .ctrl .ctrl-i_active:hover,
.slider .ctrl .ctrl-i_active{
background-color: #000;
}
.slider .ctrl .ctrl-i_active:hover img{
opacity: 0;
}
/*幻灯片切换样式*/
.slider .main .main-i{
opacity: 0;
position: absolute;
right: 50%;
top: 0;
-webkit-transition:all .5s;
transition:all 0.5s;
-o-transition:all 0.5s;
-moz-transition:all 0.5s;
}
.slider .main .main-i h2{
margin-right: 45px;
}
.slider .main .main-i h3{
margin-right: -45px;
}
.slider .main .main-i h2,
.slider .main .main-i h3{
-webkit-transition:all .8s 1s;
transition:all 1s 0.8s;
-o-transition:all 1s 0.8s;
-moz-transition:all 1s 0.8s;
}
#main_background,
.slider .main .main-i_active{
right:0;
opacity:1;
z-index:2;
}
#main_background{
z-index:1;
}
.slider .main .main-i_active h2,
.slider .main .main-i_active h3{
margin-right: 0px;
opacity: 1;
}
.slider .main .main-i .caption{
margin-right: 13%;
}
</style>
</head>
<body>
<div class="slider">
<div class="main" id="template_main">
<div class="main-i {{css}}" id="main_{{index}}">
<div class="caption">
<h2>{{h2}}</h2>
<h3>{{h3}}</h3>
</div>
<img src="./img/{{index}}.png" class="picture"/>
</div>
</div>
<!--控制区域-->
<div class="ctrl" id="template_ctrl">
<a class="ctrl-i" id="ctrl_{{index}}" href="javascript:switchSlider({{index}});">
<img src="./img/{{index}}.png"/>
</a>
</div>
<!--VCD:js就是C=controller-->
//6.动态调整图片的margin-top以使其垂直居中
function movePictures(){
var pictures = g('.picture');
for(i=0;i<pictures.length;i++){
pictures[i].style.marginTop = (-1 * pictures[i].clientHeight/2 ) + 'px'
}
}
//4.定义何时处理幻灯片输出
window.onload = function(){
addSliders();
switchSlider(2);
setTimeout(function(){
movePictures()
},100)
}
这是我写的,实现了,你可以试一试
这是我的CSS源码:
@charset "utf-8"; /* 幻灯片显示区域 */ #SliderArea { height: 600px; width: 1000px; position: relative; margin:10px; float: left; } /* 幻灯片主体区域 */ #SliderArea .Main { height: 600px; width: 100%; position: relative; overflow: hidden; } /* 每一个幻灯片的样式 */ #SliderArea .Main .main-i { height: 600px; width: 100%; position: relative; } #SliderArea .Main .main-i img { width: 100%; position: absolute; left: 0; top: 0; } #SliderArea .Main .main-i .caption { width: 100%; height: 100%; position: absolute; right: 54%; top: 60%; } #SliderArea .Main .main-i .caption h2{ background-color: rgba(245, 51, 23, 0.82); font-size: 30px; line-height: 50px; color: #ffffff; text-align: right; padding: 0px 5px; border-radius: 22px; -ms-border-radius: 22px; -moz-border-radius: 22px; -webkit-border-radius: 22px; -o-border-radius: 22px; } #SliderArea .Main .main-i .caption h3{ background-color: rgba(27, 27, 27, 0.75); font-family: YouYuan; font-size: 70px; line-height: 70px; color: #ffffff; text-align: right; padding: 0px 5px; border-radius: 5px; -ms-border-radius: 5px; -moz-border-radius: 5px; -webkit-border-radius: 5px; -o-border-radius: 5px; } #SliderArea .Main .main-i { opacity: 0; position: absolute; right: 50%; top: 0; -webkit-transition: all .5s; } #SliderArea .Main .main-i h2 { margin-right: 45px; } #SliderArea .Main .main-i h3 { margin-right: -45px; } #SliderArea .Main .main-i h2, #SliderArea .Main .main-i h3 { opacity: 0; -webkit-transition: all .8s 1s; } #SliderArea .Main .main-i_active { opacity: 1; right: 0; } #SliderArea .Main .main-i_active h2, #SliderArea .Main .main-i_active h3 { margin-right: 0; opacity: 1; } /* 幻灯片控制按钮区域 */ #SliderArea .Ctrl { height: 15px; width: 100%; line-height: 15px; text-align: center; position: absolute; left: 0; bottom: -17px; } #SliderArea .Ctrl .ctrl-i { display: inline-block; height: 15px; width: 120px; background-color: #a3a3a3; box-shadow: rgba(0,0,0,.3) 0 1px 1px; position: relative; margin-left: 1px; } #SliderArea .Ctrl .ctrl-i img { width: 100%; position: absolute; left: 0; bottom: 50px; z-index: 1; opacity: 0; -webkit-transition: all .2s; } #SliderArea .Ctrl .ctrl-i:hover { background-color: #d1d1d1; } #SliderArea .Ctrl .ctrl-i:hover img { bottom: 17px; -webkit-box-reflect: below 0px -webkit-gradient( linear, left top, left bottom, from(transparent), color-stop(50%, transparent), to(rgba(255,255,255,.3)) ); opacity: 1; } #SliderArea .Ctrl .ctrl-i_active:hover, #SliderArea .Ctrl .ctrl-i_active { background-color: #000000; } #SliderArea .Ctrl .ctrl-i_active:hover img { opacity: 0; }
我来把脚本这块补充完整:
// 1. 数据定义(实际生产环境中,应由后台给出) var data = [ { img: 1, h2: 'Virtual Interactive System', h3: 'V I S' }, { img: 2, h2: 'Computer / Network / Security', h3: 'C N S' }, { img: 3, h2: 'Global Positioning System', h3: 'G P S' }, { img: 4, h2: 'Super Hacker', h3: 'S H' }, { img: 5, h2: 'Data Protection', h3: 'D P' }, { img: 6, h2: 'Romote Interconnection', h3: 'R I' }, { img: 7, h2: 'Mad Network Engineer', h3: 'S and R' }, { img: 8, h2: 'Social Network Site', h3: 'S N S' } ]; // 2. 通用函数 var g = function (id) { if (id.substr(0, 1) == '.') { return document.getElementsByClassName(id.substr(1)); } return document.getElementById(id); } // 3. 添加幻灯片的操作(所有幻灯片 和 对应的按钮) function addSliders() { // 3.1 获取模板 var tpl_main = g('template_main').innerHTML .replace(/^\s*/, '') .replace(/\s*$/, ''); var tpl_ctrl = g('template_ctrl').innerHTML .replace(/^\s*/, '') .replace(/\s*$/, ''); // 3.2 定义最终输出 HTML 的变量 var out_main = []; var out_ctrl = []; // 3.3 遍历所有数据,构建最终输出的 HTML for (i in data) { var _html_main = tpl_main .replace(/{{index}}/g, data[i].img) .replace(/{{h2}}/g, data[i]. h2) .replace(/{{h3}}/g, data[i]. h3); var _html_ctrl = tpl_ctrl .replace(/{{index}}/g, data[i].img); out_main.push(_html_main); out_ctrl.push(_html_ctrl); } // 3.4 把 HTML 回写到对应的 DOM 里面 g('template_main').innerHTML = out_main.join(''); g('template_ctrl').innerHTML = out_ctrl.join(''); } // 4. 定义何时处理幻灯片输出 window.onload = function () { addSliders(); switchSlider(2); } // 5. 幻灯片切换 function switchSlider(n) { // 5.1 获得要展现的幻灯片 和 控制按钮 DOM var main = g('main_' + n); var ctrl = g('ctrl_' + n); // 5.2 获得所有的幻灯片以及控制按钮 var clear_main = g('.main-i'); var clear_ctrl = g('.ctrl-i'); // 5.3 清除它们的 active 样式 for (i = 0; i < clear_ctrl.length; i++) { clear_main[i].className = clear_main[i].className .replace('main-i_active', ''); clear_ctrl[i].className = clear_ctrl[i].className .replace('ctrl-i_active', ''); } // 5.4 为当前幻灯片和控制按钮附加样式 main.className += 'main-i_active'; ctrl.className += 'ctrl-i_active'; }
当然,后面的垂直居中、不显示白底还有随机切换效果那块我没能实现,搞了半天就是不知道问题出现在哪里!
JS+CSS3实现带预览图幻灯片效果
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