JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://detka72.ru/"></script>
<!doctype html>
<html>
    <title>Test</title>
    <div id="system-message-container"></div>

    <button onclick="Joomla.renderMessages(testMessages); return false;">Добавить в каризну</buton>
    <button onclick="Joomla.renderMessagesOld(testMessages); return false;">Render messages with mootools</buton>
    <br />
    <button onclick="Joomla.removeMessages(); return false">Clear messages</buton>
</html>

CSS

#system-message-container{
    border: 1px dotted red;
    padding: 10px 0;
    margin: 10px;
}
/* System Messages */
#system-message {
    margin-bottom: 10px;
    padding: 0;
}

#system-message > dt {
    font-weight: bold;
    display: none;
}

#system-message > dd {
    margin: 0;
    font-weight: bold;
    text-indent: 30px;
}

#system-message > dd > ul {
    color: #0055BB;
    background-position: 4px top;
    background-repeat: no-repeat;
    margin-bottom: 10px;
    list-style: none;
    padding: 10px;
    border-top: 3px solid #84A7DB;
    border-bottom: 3px solid #84A7DB;
}

#system-message > dd > ul > li {
    line-height: 1.5em
}

/* System Standard Messages */
#system-message > .message > ul {
    background-color: #C3D2E5;
    background-image: url(../images/notice-info.png);
}

/* System Error Messages */
#system-message > .error > ul,
#system-message > .warning > ul,
#system-message > .notice > ul {
    color: #c00;
}

#system-message > .error > ul {
    background-color: #E6C0C0;
    background-image: url(../images/notice-alert.png);
    border-color: #DE7A7B;
}

/* System Warning Messages */
#system-message > .warning > ul {
    background-color: #E6C8A6;
    background-image: url(../images/notice-note.png);
    border-color: #FFBB00;
}

/* System Notice Messages */
#system-message > .notice > ul {
    background-color: #EFE7B8;
    background-image: url(../images/notice-note.png);
    border-color: #F0DC7E;
}