jqwidgets-framework/demos/React-TSX/buttons/defaultfunctionality/src/App.css

jQWidgets is an advanced Angular, Vue, Blazor, React, Web Components, jquery, ASP .NET MVC, Custom Elements and HTML5 UI framework.

.jqx-button {
    padding: 14px 0 0 0;
}

.jqx-button span {
    top: 2px !important;
}