JSFiddle - React, Tailwind, and code Playground

HTML

<style>
.b__header {
    border-bottom: 1px solid #DEDEDE;
    height:35px;
    position:relative;
}

.b__header__text {
    top:8px;
    left:10px;
    position:absolute;
    font-size:14px;

}

.b__header__icon {
    position:absolute;
    top:8px;
    right: 10px;
}

.b__header__icon__item {
    display: block;
    z-index: 10;
    width: 15px;
    height: 15px;
    background-image: url("http://javascript.ru/themes/defaultangy/images/tree_closed.gif");
    background-repeat: no-repeat;
    -webkit-box-shadow: 0px 1px 0px #fff;
    -moz-box-shadow: 0px 1px 1px #fff;
    box-shadow: 0px 1px 0px #fff;
}


</style>    

<div class="b__header">
                        <h5 class="b__header__text">Заголовок</h5>
                        <div class="b__header__icon">
                            <a class="b__header__icon__item" href="#" title="RSS">
                        </div>
                    </div>