JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<div class="ah-modal-wrapper">
    <div class="ah-modal">
        <h5>
     when I select this text. and release my mouse click outside this modal. Modal closed. But I want to prevent this.Modal only closed when I clicked outside the modal. 
   </h5>
    </div>
</div>

CSS

.ah-modal-wrapper {
    position: fixed;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    top: 0;
    left: 0;
    overflow: auto;
    z-index: 0;
}

.ah-modal {
    width: 40%;
    height: auto;
    background-color: white;
    margin: 15% auto;
    z-index: 1;
}

JavaScript

$('.ah-modal-wrapper').on('mousedown', function(e) {	
    $(this).hide();
});

$('.ah-modal').on('mousedown', function(e){
	e.stopPropagation();
});