platypush/platypush/backend/http/static/css/source/webpanel/plugins/media/devices.scss

.media-plugin {
    .devices {
        display: inline-block;

        button {
            padding: .5rem;
        }

        .dropdown {
            .item {
                display: flex;
                align-items: center;
                cursor: pointer;

                &:hover {
                    background: $hover-bg
                }
            }
        }
    }
}