Bootstrap 3で廃止された .btn-inverse を復活させるためのCSS(適当)

btn-inverse.css

.btn-inverse {
	color: #ffffff;
	background-color: #292929;
	border-color: #1F1F1F;
}

.btn-inverse:hover,
.btn-inverse:focus,
.btn-inverse:active,
.btn-inverse.active,
.open .dropdown-toggle.btn-inverse {
	color: #ffffff;
	background-color: #414141;
	border-color: #171717;
}

.btn-inverse:active,
.btn-inverse.active,
.open .dropdown-toggle.btn-inverse {
	background-image: none;
}

.btn-inverse.disabled,
.btn-inverse[disabled],
fieldset[disabled] .btn-inverse,
.btn-inverse.disabled:hover,
.btn-inverse[disabled]:hover,
fieldset[disabled] .btn-inverse:hover,
.btn-inverse.disabled:focus,
.btn-inverse[disabled]:focus,
fieldset[disabled] .btn-inverse:focus,
.btn-inverse.disabled:active,
.btn-inverse[disabled]:active,
fieldset[disabled] .btn-inverse:active,
.btn-inverse.disabled.active,
.btn-inverse[disabled].active,
fieldset[disabled] .btn-inverse.active {
	background-color: #292929;
	border-color: #1F1F1F;
}

.btn-inverse .badge {
	color: #292929;
	background-color: #fff;
}