.btn-microsoft {
    color: #fff;
    background-color: #00a1f1;
    border-color: #00a1f1;
}

.btn-microsoft:hover {
    color: #fff;
    background-color: #0078d4;
    border-color: #0078d4;
}

.btn-microsoft:focus, .btn-microsoft.focus {
    color: #fff;
    background-color: #0078d4;
    border-color: #0078d4;
    box-shadow: 0 0 0 0.2rem rgba(0, 161, 241, 0.5);
}

.btn-microsoft:not(:disabled):not(.disabled):active, .btn-microsoft:not(:disabled):not(.disabled).active {
    color: #fff;
    background-color: #106ebe;
    border-color: #106ebe;
}

.btn-google {
    color: #fff;
    background-color: #dd4b39;
    border-color: #dd4b39;
}

.btn-google:hover {
    color: #fff;
    background-color: #c23321;
    border-color: #c23321;
}

.btn-facebook {
    color: #fff;
    background-color: #3b5998;
    border-color: #3b5998;
}

.btn-facebook:hover {
    color: #fff;
    background-color: #2d4373;
    border-color: #2d4373;
}