JSFiddle - React, Tailwind, and code Playground

HTML

<div class="parent" contenteditable="true">
    Parent div text.
    
    <span class="child" contenteditable="true">First child span text.</span>
    <span class="child" contenteditable="true">Second child span text.</span>
    <span class="child" contenteditable="true">Third child span text.</span>
</div>

<div id="console"></div>

CSS

.parent {
    width: 200px;
    height: 200px;
    background-color: #F7F7F7;
    border: 1px solid black;
}
.child {
    background-color: khaki;
    margin: 0 2px;
}
#console {
    background-color: black;
    width: 202px;
    height: 20px;
    color: white;
    clear: both;
}

JavaScript

$(document).on( 'keyup', '.parent', function() {
    //do stuff
    $('#console').html( 'Parent keyup event fired.' );
});

$(document).on( 'keyup', '.child', function(e) {
    //do stuff
    $('#console').html( 'Child keyup event fired.' );
    e.stopPropagation();
});