JSFiddle - React, Tailwind, and code Playground

HTML

<h2 class="banner alertBell">Howdy</h2>

CSS

h2 {width:100%;height:50px;}
.banner.alertBell {
    background-color:#9FCC1D;
    background-image:url("http://placehold.it/50"),
        -moz-linear-gradient(center top , #75A319 0%, #9FCC1D 100%);
    background-repeat:no-repeat, repeat;
    background-position:5px 50%, 0 0;
}