JSFiddle - React, Tailwind, and code Playground

HTML

<header>
<nav>
  <div class="logo"></div>
  <ul>
  <li><a href="">About</a></li>
  <li><a href="">Products</a></li>
  <li><a href="">Team</a></li>
  <li><a href="">Blog</a></li>
  <li><a href="">Contact</a></li>
  </ul>
</nav>


 <a href="" class="button">Kdo jsme?</a>

</header>

CSS

header{
background: url(header.jpg) no-repeat center;
background-size: cover;
width: 100%;
height: 700px;
text-align: center;
}

nav{
  width: auto; 
  height: 80px;
  float: top;
}

.logo{
display: block;
float:left;
background: url(logo.png) no-repeat;
height: 64px;
width: 64px;
margin: 70px 130px auto;

}

nav ul{
margin: 0px auto;
margin-right: 100px;
list-style-type: none;
}

nav ul li {
float: right;
padding: 0px 20px;
margin: 0 5px; 
margin-right: 50px;
font-size: 17px;
height: 73px;
line-height: 13em;

}

nav a {
color: #C3C2C4;
text-decoration: none;
font-family: Open Sans;
}

nav a:hover{
color: white;
}

.nadpis{
margin: auto;
color: white;
font-family: Open Sans;
text-align: center;
padding-top: 250px;
}


 .button {
  font-family: Open Sans;
    font-size: 18px;  
    color: black;
    text-align: center;
    border: 2px solid white;
    border-radius: 20px;
    height: 40px;
    width: 200px;
    margin: 0px auto;
    padding-top: 10px; 
  display: block; 
  }