CODE EXAMPLE FOR CSS

ng-multiselect-dropdown custom css

// you can override css of any node module or library by :host and ::ng-deep.

:host ::ng-deep .multiselect-dropdown .dropdown-btn {
	display: inline-block;
	border: 1px solid #adadad;
	width: 100%;
	padding: 6px 12px;
	margin-bottom: 0;
	font-size: 12px;
	font-weight: 400;
	line-height: 1.1;
	text-align: left;
	vertical-align: middle;
	cursor: pointer;
	background-image: none;
	border-radius: 4px;
}