.btn{

    display:inline-block;
    padding:8px 14px;
    border-radius:8px;
    text-decoration:none;
    border:none;
    cursor:pointer;
    font-size:14px;
    line-height:1.3;
    box-sizing:border-box;

}

.btn:hover{

    opacity:0.9;
    text-decoration:none;

}

.btn-small{

    padding:5px 9px;
    font-size:12px;

}

.btn-blue{

    background:#2196f3;
    color:white;

}

.btn-green{

    background:#28a745;
    color:white;

}

.btn-red{

    background:#d9534f;
    color:white;

}

.btn-gray{

    background:#777;
    color:white;

}

.btn-orange{

    background:#ff9800;
    color:white;

}

.btn-brown{

    background:#795548;
    color:white;

}

.btn-purple{

    background:#9c27b0;
    color:white;

}

.btn-link{

    background:transparent;
    color:#1976d2;
    padding:0;

}