CSS3伪元素应用——CSS3 Button
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大漠
有关于CSS3制作buttons，本站前面介绍了多个案例：
当然，除了上面的制作方法以外网上还有大把的制作方法，比如说webdesignshock.com整理了一个《CSS and CSS3 buttons, 110 best sets !》一文中，搜集了各式各样的“Button”制作方法。不过众多方法中，我个人认为有几个教程介绍的是相当不错的，首推Pixify.com介绍Google+的“button”制作方法——《Use Gootle to Improve Your Ui》一文，另外还有一篇文章——《Google+ Styled Buttons》,在此基础上进行了扩展，使其更具简单化。其次是BootStrap写的Buttons也是相当的靓丽。同时BonBob写的《3D Buttons》和Martin Angelov 写的《动画buttons》也是相当有典型性。
既然有这么多种按例了，还写Buttons的制作不是在浪费时间吗？说真的是有点，不过今天逛Blog发现Sergio Camalich用伪类写的Buttons相当的漂亮：
仔细学习了一回，现将相关实现的代码贴上来与大家分享。（^_^）自力更生才能丰衣足食嘛。废话就不多说了，一直来看代码吧：
HTML Markup
下面DEMO用到的HTML结构相当的简单，就是一个链接标签：
<a href="#" class="btn btn_demo1">Click me!</a>
CSS Code
这里先写一下下面DEMO中Buttons共用的一些样式：
/*btn*/
.btn {
background-color:#3bb3e0;
padding:10px;
position:relative;
font-family: 'Open Sans', sans-serif;
font-size:12px;
text-decoration:none;
color:#fff;
border: solid 1px #186f8f;
background-image: linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -o-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -moz-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -webkit-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -ms-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -webkit-gradient(linear,left bottom,left top,color-stop(0, rgb(44,160,202)),color-stop(1, rgb(62,184,229)));
-webkit-box-shadow: inset 0px 1px 0px #7fd2f1, 0px 1px 0px #fff;
-moz-box-shadow: inset 0px 1px 0px #7fd2f1, 0px 1px 0px #fff;
box-shadow: inset 0px 1px 0px #7fd2f1, 0px 1px 0px #fff;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
-o-border-radius: 5px;
border-radius: 5px;
}
DEMO一
我在上图简单的标明了一下，其中buttons底下的灰色，主要使用了“::before”来实现的，然后在“buttons”按下时增加了一个效果，具体看代码吧：
.btn_demo1::before {
background-color:#ccd0d5;
content:"";
display:block;
position:absolute;
width:100%;
height:100%;
padding:8px;
left:-8px;
top:-8px;
z-index:-1;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
-o-border-radius: 5px;
border-radius: 5px;
-webkit-box-shadow: inset 0px 1px 1px #909193, 0px 1px 0px #fff;
-moz-box-shadow: inset 0px 1px 1px #909193, 0px 1px 0px #fff;
-o-box-shadow: inset 0px 1px 1px #909193, 0px 1px 0px #fff;
box-shadow: inset 0px 1px 1px #909193, 0px 1px 0px #fff;
}
.btn_demo1:active {
padding-bottom:9px;
padding-left:10px;
padding-right:10px;
padding-top:11px;
top:1px;
background-image: linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -o-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -moz-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -webkit-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -ms-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -webkit-gradient(
linear,
left bottom,
left top,
color-stop(0, rgb(62,184,229)),
color-stop(1, rgb(44,160,202))
);
}
DEMO二
这个DEMO制作的是一个“3D Button”的效果，但和BonBob写的3D Buttons效果还是有点不同的，大家要是感兴趣的可以拿上他们做个对比：
/*demo2*/
.btn_demo2 {
border: none;
background-image: linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -o-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -moz-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -webkit-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -ms-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -webkit-gradient(linear,left bottom,left top,color-stop(0, rgb(44,160,202)),color-stop(1, rgb(62,184,229)));
-webkit-box-shadow: inset 0px 1px 0px #7fd2f1, 0px 6px 0px #156785;
-moz-box-shadow: inset 0px 1px 0px #7fd2f1, 0px 6px 0px #156785;
-o-box-shadow: inset 0px 1px 0px #7fd2f1, 0px 6px 0px #156785;
box-shadow: inset 0px 1px 0px #7fd2f1, 0px 6px 0px #156785;
}
.btn_demo2::before {
background-color:#072239;
content:"";
display:block;
position:absolute;
width:100%;
height:100%;
padding-left:2px;
padding-right:2px;
padding-bottom:4px;
left:-2px;
top:5px;
z-index:-1;
-webkit-border-radius: 6px;
-moz-border-radius: 6px;
-o-border-radius: 6px;
border-radius: 6px;
-webkit-box-shadow: 0px 1px 0px #fff;
-moz-box-shadow: 0px 1px 0px #fff;
-o-box-shadow: 0px 1px 0px #fff;
box-shadow: 0px 1px 0px #fff;
}
.btn_demo2:active {
color:#156785;
text-shadow: 0px 1px 1px rgba(255,255,255,0.3);
background:rgb(44,160,202);
-webkit-box-shadow: inset 0px 1px 0px #7fd2f1, inset 0px -1px 0px #156785;
-moz-box-shadow: inset 0px 1px 0px #7fd2f1, inset 0px -1px 0px #156785;
-o-box-shadow: inset 0px 1px 0px #7fd2f1, inset 0px -1px 0px #156785;
box-shadow: inset 0px 1px 0px #7fd2f1, inset 0px -1px 0px #156785;
top:7px;
}
.btn_demo2:active::before {
top:-2px;
}
DEMO3
这种效果是相当的牛，让我再次体会到CSS3的强大。使用一个“::before”居能实现“button”的分裂效果，真是不可想像，这真是应了那句老话“没有做不到的，只有想不到的”。不扯别的了，直接看代码：
/*demo3*/
.btn_demo3 {
padding:10px 20px;
border: none;
border-left:solid 1px #2ab7ec;
margin-left:35px;
background-image: linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -o-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -moz-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -webkit-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -ms-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -webkit-gradient(linear,left bottom,left top, color-stop(0, rgb(44,160,202)), color-stop(1, rgb(62,184,229)));
-moz-border-radius: 0 5px 5px 0;
-webkit-border-radius: 0 5px 5px 0;
border-radius: 0 5px 5px 0;
-webkit-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999;
-moz-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999;
-o-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999;
box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999;
}
.btn_demo3:active {
top:3px;
background-image: linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -o-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -moz-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -webkit-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -ms-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -webkit-gradient(linear,left bottom,left top,color-stop(0, rgb(62,184,229)),color-stop(1, rgb(44,160,202)));
-webkit-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 2px 0px 0px #156785, 0px 5px 3px #999;
-moz-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 2px 0px 0px #156785, 0px 5px 3px #999;
-o-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 2px 0px 0px #156785, 0px 5px 3px #999;
box-shadow: inset 0px 1px 0px #2ab7ec, 0px 2px 0px 0px #156785, 0px 5px 3px #999;
}
.btn_demo3::before {
background-color:#2561b4;
content:"1";
width:35px;
max-height:29px;
height:100%;
position:absolute;
display:block;
padding-top:8px;
top:0px;
left:-36px;
font-size:16px;
font-weight:bold;
color:#8fd1ea;
text-shadow:1px 1px 0px #07526e;
border-right:solid 1px #07526e;
background-image: linear-gradient(bottom, rgb(10,94,125) 0%, rgb(14,139,184) 100%);
background-image: -o-linear-gradient(bottom, rgb(10,94,125) 0%, rgb(14,139,184) 100%);
background-image: -moz-linear-gradient(bottom, rgb(10,94,125) 0%, rgb(14,139,184) 100%);
background-image: -webkit-linear-gradient(bottom, rgb(10,94,125) 0%, rgb(14,139,184) 100%);
background-image: -ms-linear-gradient(bottom, rgb(10,94,125) 0%, rgb(14,139,184) 100%);
background-image: -webkit-gradient(linear,left bottom,left top,color-stop(0, rgb(10,94,125)), color-stop(1, rgb(14,139,184)));
-moz-border-radius: 5px 0 0 5px;
-webkit-border-radius: 5px 0 0 5px;
border-radius: 5px 0 0 5px;
-webkit-box-shadow:inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #032b3a, 0px 10px 5px #999 ;
-moz-box-shadow:inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #032b3a, 0px 10px 5px #999 ;
-o-box-shadow:inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #032b3a, 0px 10px 5px #999 ;
box-shadow:inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #032b3a, 0px 10px 5px #999 ;
text-align: center;
}
.btn_demo3:active::before {
top:-3px;
-webkit-box-shadow:inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #032b3a, 1px 1px 0px 0px #044a64, 2px 2px 0px 0px #044a64, 2px 5px 0px 0px #044a64, 6px 4px 2px #0b698b, 0px 10px 5px #999 ;
-moz-box-shadow:inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #032b3a, 1px 1px 0px 0px #044a64, 2px 2px 0px 0px #044a64, 2px 5px 0px 0px #044a64, 6px 4px 2px #0b698b, 0px 10px 5px #999 ;
-o-box-shadow:inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #032b3a, 1px 1px 0px 0px #044a64, 2px 2px 0px 0px #044a64, 2px 5px 0px 0px #044a64, 6px 4px 2px #0b698b, 0px 10px 5px #999 ;
box-shadow:inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #032b3a, 1px 1px 0px 0px #044a64, 2px 2px 0px 0px #044a64, 2px 5px 0px 0px #044a64, 6px 4px 2px #0b698b, 0px 10px 5px #999 ;
}
/*Second button*/
.second_button::before {
content:"2";
}
/*Third button*/
.third_button::before {
content:"3";
}
DEMO四
这个效果在“::before”上使用了一个背景图片，当然大家还可以用相应的HTML实体符来代码，比如在《CSS3和HTML实体符制作带图片效果的Buttons》介绍的一样，不过此例使用的是一张背景图，详细的看代码：
/*DEMO4*/
.btn_demo4 {
border: none;
padding:10px 20px;
padding-right:50px;
background-image: linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -o-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -moz-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -webkit-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -ms-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -webkit-gradient( linear,left bottom,left top,color-stop(0, rgb(44,160,202)),color-stop(1, rgb(62,184,229)));
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;
-webkit-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999;
-moz-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999;
-o-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999;
box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999;
}
.btn_demo4:active {
top:3px;
background-image: linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -o-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -moz-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -webkit-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -ms-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -webkit-gradient(linear,left bottom,left top,color-stop(0, rgb(62,184,229)),color-stop(1, rgb(44,160,202)));
-webkit-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 2px 0px 0px #156785, 0px 5px 3px #999;
-moz-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 2px 0px 0px #156785, 0px 5px 3px #999;
-o-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 2px 0px 0px #156785, 0px 5px 3px #999;
box-shadow: inset 0px 1px 0px #2ab7ec, 0px 2px 0px 0px #156785, 0px 5px 3px #999;
}
.btn_demo4::before {
background-color:#2591b4;
background-image:url(images/right_arrow.png);
background-repeat:no-repeat;
background-position:center center;
content:"";
width:20px;
height:20px;
position:absolute;
right:15px;
top:50%;
margin-top:-9px;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border-radius: 50%;
-webkit-box-shadow: inset 0px 1px 0px #052756, 0px 1px 0px #60c9f0;
-moz-box-shadow: inset 0px 1px 0px #052756, 0px 1px 0px #60c9f0;
-o-box-shadow: inset 0px 1px 0px #052756, 0px 1px 0px #60c9f0;
box-shadow: inset 0px 1px 0px #052756, 0px 1px 0px #60c9f0;
}
.btn_demo4:active::before {
top:50%;
margin-top:-12px;
-webkit-box-shadow: inset 0px 1px 0px #60c9f0, 0px 3px 0px #0e3871, 0px 6px 3px #1a80a6;
-moz-box-shadow: inset 0px 1px 0px #60c9f0, 0px 3px 0px #0e3871, 0px 6px 3px #1a80a6;
-o-box-shadow: inset 0px 1px 0px #60c9f0, 0px 3px 0px #0e3871, 0px 6px 3px #1a80a6;
box-shadow: inset 0px 1px 0px #60c9f0, 0px 3px 0px #0e3871, 0px 6px 3px #1a80a6;
}
DEMO五
这个效果也使用了一张背景图，大家看代码吧，比我说的更清楚：
/*DEMO 5*/
.btn_demo5 {
display:block;
border: none;
width: 240px;
text-align: center;
margin-top:40px;
padding-bottom:10px;
padding-top:10px;
background-image: linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -o-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -moz-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -webkit-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -ms-linear-gradient(bottom, rgb(44,160,202) 0%, rgb(62,184,229) 100%);
background-image: -webkit-gradient(linear,left bottom,left top,color-stop(0, rgb(44,160,202)),color-stop(1, rgb(62,184,229)));
-moz-border-radius: 0 0 5px 5px;
-webkit-border-radius: 0 0 5px 5px;
border-radius: 0 0 5px 5px;
-webkit-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999;
-moz-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999;
-o-box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999;
box-shadow: inset 0px 1px 0px #2ab7ec, 0px 5px 0px 0px #156785, 0px 10px 5px #999;
}
.btn_demo5:active {
top:0px;
background-image: linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -o-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -moz-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -webkit-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -ms-linear-gradient(bottom, rgb(62,184,229) 0%, rgb(44,160,202) 100%);
background-image: -webkit-gradient(linear,left bottom,left top,color-stop(0, rgb(62,184,229)),color-stop(1, rgb(44,160,202)));
-webkit-box-shadow: inset 0px 4px 1px #0b698b, 0px 2px 0px 0px #156785, 0px 5px 3px #999;
-moz-box-shadow: 0px 2px 0px 1px #156785, 0px 5px 3px #999;
-o-box-shadow: 0px 2px 0px 1px #156785, 0px 5px 3px #999;
box-shadow: inset 0px 4px 1px #0b698b, 0px 2px 0px 0px #156785, 0px 5px 3px #999;
}
.btn_demo5::before {
background: #fff url(images/heart.gif) no-repeat center;
content:"";
height:40px;
width: 260px;
position:absolute;
top:-30px;
left:0px;
margin-top:-11px;
z-index:-1;
-moz-border-radius: 5px 5px 0 0;
-webkit-border-radius: 5px 5px 0 0;
border-radius: 5px 5px 0 0;
}
.btn_demo5:active::before {
top: -30px;
-webkit-box-shadow: 0px 3px 0px #ccc;
-moz-box-shadow: 0px 3px 0px #ccc;
-o-box-shadow: 0px 3px 0px #ccc;
box-shadow: 0px 3px 0px #ccc;
}
五个DEMO效果都出来了，不知道大家喜欢不喜欢。希望大家也能开动脑筋写写效果。希望能与大家一起分享。
在结束此文时，要非常感谢Sergio Camalich给我们带来这么好的教程《CSS Buttons with Pseudo-elements》。
如需转载烦请注明出处：W3CPLUS
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