/* Polyfill for Bootstrap 3 .btn-default */
.btn-default {
    color: #333;
    background-color: #fff;
    border-color: #ccc;
}
.btn-default:hover,
.btn-default:focus,
.btn-default:active,
.btn-default.active {
    color: #333;
    background-color: #e6e6e6;
    border-color: #adadad;
}