.tab .nav-tabs{
    border: 1px solid #ccc;
}
.tab .nav-tabs li{
    margin: 0;
}
.tab .nav-tabs li a{
    font-size: 20px;
    color: inherit;
    background: #fff;
    margin: 0;
    padding: 20px 25px;
    border-radius: 0;
    border: none;
    border-right: 1px solid #ddd;
    text-transform: uppercase;
    position: relative;
}
.tab .nav-tabs li a:hover{
    border-top: none;
    border-bottom: none;
    border-right-color: #ddd;
}
.tab .nav-tabs li.active a,
.tab .nav-tabs li.active a:hover{
    color: #fff;
    border: none;
    background: #0579e0;
    border-right: 1px solid #ddd;
}
.tab .nav-tabs li.active a:before{
    content: "";
    width: 58%;
    height: 4px;
    background: #fff;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    margin: 0 auto;
}
.tab .nav-tabs li.active a:after{
    content: "";
    border-top: 10px solid #0579e0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    position: absolute;
    bottom: -10px;
    left: 43%;
}
.tab .tab-content{
    font-size: 13px;
    color: inherit;
    line-height: 25px;
    background: #fff;
    padding: 20px;
    border: 1px solid #ccc;
    border-top: none;
}
.tab .tab-content h3{
    font-size: 24px;
    color: inherit;
    margin-top: 0;
}
@media only screen and (max-width: 480px){
    .tab .nav-tabs li{
        width: 100%;
        text-align: center;
    }
    .tab .nav-tabs li.active a,
    .tab .nav-tabs li.active a:after,
    .tab .nav-tabs li.active a:hover{
        border: none;
    }
}