这是一款炫酷Bootstrap美化Tabs选项卡特效。该选项卡特效基于Bootstrap原生Tab选项卡的基础上，使用CSS样式来进行美化，增加了tab标签的伸缩动画功能。

使用方法

在页面中引入bootstrap相关文件和fontawsome字体图标文件。

<link href="path/to/css/bootstrap.min.css" rel="stylesheet">
<link href="path/to/css/font-awesome.min.css" rel="stylesheet">
<script src="path/to/jquery.min.js"></script>
<script src="path/to/bootstrap.min.js"></script>
HTML结构

选项卡的基本HTML结构如下：

<div class="container">
    <div class="row">
        <div class="col-md-offset-3 col-md-6">
            <div class="tab" role="tabpanel">
                <!-- Nav tabs -->
                <ul class="nav nav-tabs" role="tablist">
                    <li role="presentation" class="active"><a href="#Section1" aria-controls="home" role="tab" data-toggle="tab"><i class="fa fa-home"></i><span>SECTION-1</span></a></li>
                    <li role="presentation"><a href="#Section2" aria-controls="profile" role="tab" data-toggle="tab"><i class="fa fa-globe"></i><span>SECTION-2</span></a></li>
                    <li role="presentation"><a href="#Section3" aria-controls="messages" role="tab" data-toggle="tab"><i class="fa fa-briefcase"></i><span>SECTION-3</span></a></li>
                </ul>
                <!-- Tab panes -->
                <div class="tab-content tabs">
                    <div role="tabpanel" class="tab-pane fade in active" id="Section1">
                        <h3>Section 1</h3>
                        <p>选项卡一的内容</p>
                    </div>
                    <div role="tabpanel" class="tab-pane fade" id="Section2">
                        <h3>Section 2</h3>
                        <p>选项卡二的内容</p>
                    </div>
                    <div role="tabpanel" class="tab-pane fade" id="Section3">
                        <h3>Section 3</h3>
                        <p>选项卡三的内容</p>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
CSS样式

为Tab选项卡添加下面的CSS样式。

a:hover,a:focus{
    outline: none;
    text-decoration: none;
}
.tab .nav-tabs{
    padding-left: 15px;
    border-bottom: 4px solid #692f6c;
}
.tab .nav-tabs li a{
    color: #fff;
    padding: 10px 20px;
    margin-right: 10px;
    background: #692f6c;
    text-shadow: 1px 1px 2px #000;
    border: none;
    border-radius: 0;
    opacity: 0.5;
    position: relative;
    transition: all 0.3s ease 0s;
}
.tab .nav-tabs li a:hover{
    background: #692f6c;
    opacity: 0.8;
}
.tab .nav-tabs li.active a{
    opacity: 1;
}
.tab .nav-tabs li.active a,
.tab .nav-tabs li.active a:hover,
.tab .nav-tabs li.active a:focus{
    color: #fff;
    background: #692f6c;
    border: none;
    border-radius: 0;
}
.tab .nav-tabs li a:before,
.tab .nav-tabs li a:after{
    content: "";
    border-top: 42px solid transparent;
    position: absolute;
    top: -2px;
}
.tab .nav-tabs li a:before{
    border-right: 15px solid #692f6c;
    left: -15px;
}
.tab .nav-tabs li a:after{
    border-left: 15px solid #692f6c;
    right: -15px;
}
.tab .nav-tabs li a i,
.tab .nav-tabs li.active a i{
    display: inline-block;
    padding-right: 5px;
    font-size: 15px;
    text-shadow: none;
}
.tab .nav-tabs li a span{
    display: inline-block;
    font-size: 14px;
    letter-spacing: -9px;
    opacity: 0;
    transition: all 0.3s ease 0s;
}
.tab .nav-tabs li a:hover span,
.tab .nav-tabs li.active a span{
    letter-spacing: 1px;
    opacity: 1;
    transition: all 0.3s ease 0s;
}
.tab .tab-content{
    padding: 30px;
    background: #fff;
    font-size: 16px;
    color: #6c6c6c;
    line-height: 25px;
}
.tab .tab-content h3{
    font-size: 24px;
    margin-top: 0;
}
@media only screen and (max-width: 479px){
    .tab .nav-tabs li{
        width: 100%;
        margin-bottom: 5px;
        text-align: center;
    }
    .tab .nav-tabs li a span{
        letter-spacing: 1px;
        opacity: 1;
    }
}