JSFiddle - React, Tailwind, and code Playground

HTML

<div id="intro">Hello World to PHP Concatenation in PHP is done using .</div>
<h2>Vivek kumarLearning php</h2>
<div class="plain">My name is Vivek Kumar and age is 26 .</div>
<div class="plain">My name is Vivek Kumar and age is 26.</div>

CSS

body {
    font-size: 130%;
}
#intro {
    font-weight: bold;
    margin-bottom: 10px;
}
.plain {
    font-size: 100%;
}