.btn-1 {
    color:#ccc;
}

.btn-1:hover {
    color:#fff; 
}

.btn-2 {
    border:2px solid #ccc;
}

.btn-2 img {
    opacity:.3;
}

.btn-2:hover {
    border:2px solid #191919; 
}

.btn-2:hover img {
    opacity:.6;
}

.btn-3 {
    border:2px solid #757575;
}

.btn-3:hover {
    border:2px solid #ccc;
}

.btn-4 {
    opacity:.3;
}

.btn-4:hover {
    opacity:.6;
}

.btn-5 {
    border:2px solid #ccc;
    color:#ccc;
}

.btn-5:hover {
    border:2px solid #000;
    color:#000; 
}

.btn-6 {   
    background:#fff;
    border:2px solid #374045;
    color:#374045;
}

.btn-6:hover {
    background:#374045;
    border:2px solid #fff;
    color:#fff;
}

.btn-7 {   
    background:#374045;
    border:2px solid #fff;
    color:#fff;
}

.btn-7:hover {
    background:#fff;
    border:2px solid #374045;
    color:#374045;
}

.btn-8 {   
    opacity:1;
}

.btn-8:hover {
    opacity:.6;
}


.btn-9 {   
    background:#fff; 
    color:#000;
}

.btn-9:hover {
    background:#f6f6f6; 
    color:#000;
}