JSFiddle - React, Tailwind, and code Playground

by shriek

HTML

<p class="field" contenteditable="true">

CSS

p{
    border:1px solid black;
}

JavaScript

$(document).on("keyup",".field",function(){
    if($(this).text()[$(this).text().length - 1] == '\xA0'){
        $(this).html("<mark>" + $(this).text() + "</mark>");
        console.log($(this).text());
    }
});