focalboard/webapp/src/components/workspaceComponent.scss

.WorkspaceComponent {
	flex: 1 1 auto;
	display: flex;
	flex-direction: row;
    overflow: auto;

    > .mainFrame {
        flex: 1 1 auto;
        display: flex;
        flex-direction: column;

        > .banner {
            background-color: rgba(230, 220, 192, 0.9);
            text-align: center;
            padding: 10px;
        }
    }
}