.btn-main {
    background-color: #3D30A2;
    color: #fff;
}

.btn-main:hover,
.btn-main:focus {
    background-color: #2c1e98;
    color: #fff;
}

.btn-min {
    background-color: #11b643;
    color: #fff;
}

.btn-min:hover,
.btn-min:focus {
    background-color: #07a236;
    color: #fff;
}

.btn-alt {
    background-color: #00b2f6;
    color: #fff;
}

.btn-alt:hover,
.btn-alt:focus {
    background-color: #12abe7;
    color: #fff;
}

.featured:hover,
.featured:focus {
    outline: none;
    color: #fff;
}

button.empty {
    background: none;
    border: none;
}

button.empty:hover,
button.empty:focus {
    outline: none;
}

@media screen and (max-width: 600px){ 
    .btn {
        width: 100%;
        height: 50px;
    }
}