JSFiddle - React, Tailwind, and code Playground

HTML

<div class="body">
    <div class="welcomeHeader">			
        <h3>Welcome</h3>
        <h6>Adam Testorsson</h6>
    </div>
    <p>other stuff</p>
</div>

CSS

.welcomeHeader {
    padding-left: 30px;
    display: inline-block;
    position: relative;
}

.welcomeHeader:before {
    position: absolute;
    background-image: url('http://www.ronnebybloggen.se/pics/apml.png');
    background-repeat: no-repeat;
    background-position: left center;
    display: inline-block;
    content: ' ';
    
    width: 12px;
    height: 100%;
    margin-left: -22px;
    margin-top: -3px;
}

* {
    font-size: 13px;
    margin: 5px;
}

h6 {
    font-weight: normal;
}