JSFiddle - React, Tailwind, and code Playground

by illight

HTML

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <link rel="stylesheet" href="style.css" type="text/css" media="screen" title="no title" charset="utf-8"/>
</head>
<body>
    <div class="container">
    <div class="col-lg-14" id="a-btn">
					<a href="../login/" class="a-btn">
						<span class="a-btn-ico1"><span></span></span>
						<span class="a-btn-slide-text">Войти</span>
					</a>
					<a href="../search/" class="a-btn">
						<span class="a-btn-ico2"><span></span></span>
						<span class="a-btn-slide-text">Поиск</span>
					</a>
					<a href="../mail/" class="a-btn">
						<span class="a-btn-ico3"><span></span></span>
						<span class="a-btn-slide-text">Написать</span>
					</a>
					<a href="../order/" class="a-btn-green">
						<span class="a-btn-ico4"><span></span></span>
						<span class="a-btn-green-slide-text">Заявка</span>
					</a>
				</div>
     </div>
  <div class="container">
      <div class="left-nav">
        <ul>
            <li><a href="#">item 1</a></li>
            <li><a href="#">item 2</a></li>
            <li><a href="#">item 3</a></li>
            <li><a href="#">item 4</a></li>
            <li><a href="#">item 5</a></li>
        </ul>
      </div>
      <div class="content">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</div>
  </div>
</body>
</html>

CSS

header .container {
	width: 1240px;
	padding-top: 3px;
    left: 50%;
    margin-right: -50%;
    transform: translate(-50%, 0)
    
    .left-nav ul, .nav>ul, .nav>ul ul {
  list-style: none;
  padding: 0;
}

  .container {
    margin-top: 20px;
}

  .left-nav {
    float: left;
    padding-right: 30px;
}
  .a-btn{
    background:#f1f1f1;
    padding:0px 0px 0px 0px;
    height:38px;
    width:38px;
    display:inline-block;
    position:relative;
    margin:1px;
    float:left;
    overflow:hidden;
    -webkit-transition:all 0.1s linear;
    -moz-transition:all 0.1s linear;
    -o-transition:all 0.1s linear;
    transition:all 0.1s linear;
}
.a-btn-green{
    background:#16c25e;
    padding:0px 0px 0px 0px;
    height:38px;
    width:38px;
    display:inline-block;
    position:relative;
    margin:1px;
    float:left;
    overflow:hidden;
    -webkit-transition:all 0.1s linear;
    -moz-transition:all 0.1s linear;
    -o-transition:all 0.1s linear;
    transition:all 0.1s linear;
}

.a-btn-ico1{
    background:url(../images/icon_login.jpg) no-repeat center center;
    width: 38px;
    height: 38px;
    display: block;
}
.a-btn-ico2{
    background:url(../images/icon_search.jpg) no-repeat center center;
    width: 38px;
    height: 38px;
    display: block;
}
.a-btn-ico3{
    background:url(../images/icon_contacts.jpg) no-repeat center center;
    width: 38px;
    height: 38px;
    display: block;
}
.a-btn-ico4{
    background:url(../images/icon_order.jpg) no-repeat center center;
    width: 38px;
    height: 38px;
    display: block;
}

.a-btn-slide-text{
    position:absolute;
    top:38px;
    bottom:0px;
    height:auto;
    width:38px;
    left:0px;
    right:8px;
    writing-mode:tb-rl;
    color:#000000;
    font-size:13px;
    font-family:Verdana;
    font-style:normal;
    text-indent:5px;
    overflow:hidden;
    -webkit-transition:height 0.2s linear;
    -moz-transition:height 0.2s linear;
    -o-transition:height 0.2s linear;
    transition:height...