body{

    background:#f5f6fa;

}

.card{

    border-radius:15px;

}

.card-header{

    font-size:22px;
    font-weight:bold;

}

.panel{

    border:1px solid #DDD;

    padding:20px;

    border-radius:10px;

    margin-bottom:20px;

    background:white;

}