body{
    font-family: Roboto;
}
.header{
    height: 55px;
    background: green;
    color: #fff;
    padding: 7px 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0,150,0,0.5);
    z-index: 999;
}
.header .container{
    position: relative;
}
.header .app-title{
    position: absolute;
    left: 70px;
    top: 8px;
    font-size: 20px;
}
.header .container .btn-buy, .header .container .btn-demo{
    float: right;
    margin-top: 4px;
}
.header .container .btn-demo{
    margin-right: 5px;
}
.body{
    margin: 55px 0;
}
h2.page-title{
    font-weight: 300;
    font-size: 36px;
    display: block;
    margin-top: 100px;
    margin-bottom: 50px;
}
h3.page-title{
    font-weight: 300;
    font-size: 28px;
    display: block;
    margin-top: 35px;
    margin-bottom: 35px;
}
.card{
    margin: 15px 0;
}