JSFiddle - React, Tailwind, and code Playground

HTML

<h1>Название</h1>

CSS

h1:after {
    content: "";
    display: inline-block;
    border: 25px solid transparent;
    border-left: 25px solid #FFA500;
    position: absolute;
    top: 0;
    left: 100%;
}
h1 {
    background-color: #FFA500;
    color: #FFFFFF;
    display: inline-block;
    font-family: 'Roboto',sans-serif;
    font-size: 24px;
    font-weight: 700;
    line-height: 24px;
    padding: 13px;
    position: relative;
}