JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container">
    <ul id="unlNotification" class="ui-resizable" style="height: 127.7px;">
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    </ul>
</div>

CSS

.ui-icon {
    background-color: black;
    cursor: se-resize;
    height: 12px;
    width: 12px;
    position: absolute;
    right:20px;
    bottom: 1px;
}
#container {
    position: relative;
    width: 190px;
}
.ui-resizable {
    overflow-x: hidden;
    overflow-y: auto;
    position: static !important;
}
ul, li {
    list-style: none outside none;
    width: 190px;
    padding: 0; margin: 0;
}

JavaScript

$( "#unlNotification" ).resizable({
    maxWidth: 190,
    minWidth: 190
});