JSFiddle - React, Tailwind, and code Playground

HTML

<div class="author-wrapper">
	<div class="sign-social">
		Войти через 
		<a class="author-social-link" href="#"></a>
		<a class="author-social-link" href="#"></a>
	</div>

	<button class="author-submit" type="submit">Войти</button>
</div>

CSS

.author-wrapper{
	width: 300px;
	height: 300px;
    border: 1px solid #000000;
}

.author-wrapper .sign-social,
.author-wrapper .author-submit{
	display: inline-block;
}

.author-social-link{
	width: 40px;
	height: 40px;
	display: inline-block;
    background: #fff url(http://hm.danta.com.ua/img/sprite-18px.png) 16px -30px no-repeat;
}