JSFiddle - React, Tailwind, and code Playground

HTML

<div id="popup-msg">
		<div id="loading">
			<h2>Loading...</h2>
			<h3>Please wait a few seconds.</h3>
		</div>	
		
		<div id="success" title="Hurray,">
			<p>User table is updated.</p>
		</div>
	</div>

CSS

.ui-widget {
    font-family: Verdana,Arial,sans-serif;
    font-size: .8em;
}

.ui-widget-content {
    background: #F9F9F9;
    border: 1px solid #90d93f;
    color: #222222;
}

.ui-dialog {
    left: 0;
    outline: 0 none;
    padding: 0 !important;
    position: absolute;
    top: 0;
}

#success {
    padding: 0;
    margin: 0; 
}

.ui-dialog .ui-dialog-content {
    background: none repeat scroll 0 0 transparent;
    border: 0 none;
    overflow: auto;
    position: relative;
    padding: 0 !important;
}

.ui-widget-header {
    background: #b0de78;
    border: 0;
    color: #fff;
    font-weight: normal;
}

.ui-dialog .ui-dialog-titlebar {
    padding: 0.1em .5em;
    position: relative;
        font-size: 1em;
}

JavaScript

$('#success').dialog({
							//autoOpen: true,
							height: 50,
							width: 350,
							modal: true,
                            resizable: false,
							//closeOnEscape: false,
							//open: function(event, ui) { $(".ui-dialog-titlebar-close", ui).hide(); }
							//closeOnEscape: false,
							//beforeclose: function (event, ui) { return false; },
							dialogClass: 'no-close'
						});