JSFiddle - React, Tailwind, and code Playground

HTML

<h1>Obowiązki</h1>
<div class="h_er"></div>
<div id="container">
<div id="menu_lewe">
<ol class="usersy">
<li><span style="margin-left:5px;" class="wlasciciel"> Dziadek</span></li>
<li><span style="margin-left:5px;" class="wlasciciel"> ZnaQu</span></li>
<li><span style="margin-left:5px;" class="admin"> Penki</span></li>
<li><span style="margin-left:5px;" class="jadmin"> Myszka Kocha Rahima</span></li>
<li><span style="margin-left:5px;" class="gmod"> Eprise</span></li>
</ol>
</div>
<div id="menu_prawe">
<div id="dziadek">
<span style="wlasciciel"> Dziadek</span>
<span style="gid-4"> Właściciel</span>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
</div>
</div>
<div style="clear:both;"></div>

</div>

CSS

body {
 background: #ccc;
color: #000;
margin: auto auto;
margin-top: -20px;
}

#hr-bg {
width: 100%;
height: 140px;
background: url("images/header.png") no-repeat center;
}
#logo {
margin-left: 103px;
margin-top: 20px;
}
#menu {
background-color: #0051c0;
color: #fff;
width: 100%;
}
.napis, a:visited {
float: left;
min-width: 10%;
width: 230px;
height: 30px;
font-size: 18px;
padding: 10px;
text-align: center;
transition: 1s;
-webkit-transition: 1s;
font-weight: bold;
line-height: 27px;
color: #fff;
}

.napis:hover, a:visited {
color: #0051c0;
background-color: #fff;
}

a:link, a:visited, a:hover {
text-decoration: none;
color: #000;
}

#container {
width: 950px;
background-color: #fff;
color: #000;
margin: auto auto;
-webkit-box-shadow: 0px 6px 36px 3px rgba(0,0,0,0.78);
-moz-box-shadow: 0px 6px 36px 3px rgba(0,0,0,0.78);
box-shadow: 0px 6px 36px 3px rgba(0,0,0,0.78);
border-radius: 3px;
padding: 12px 30px 12px 30px;
margin-top: 25px;
font-size:20px;
}

li {
margin-bottom: 4px;
letter-spacing: 1px;
}

h1 {
margin-left: 260px;
color: #0051c0;
}

.h_er {
width: 750px;
margin: auto auto;
border-bottom: 1px solid #3e3e3e;
padding: 0 30px 0 30px;
}

.hinf_id {
float: left;
margin-right: 140px;
}
.hinf_a {
float: left;
margin-right: 230px;
}

.wyn_id {
float: left;
margin-right: 140px;
display: inline-block;
   min-width: 10px;
   padding: 3px 7px;
   font-size: 12px;
   font-weight: bold;
   color: #ffffff;
   line-height: 1;
   vertical-align: middle;
   white-space: nowrap;
   text-align: center;
   background-color: #0051c0;
   border-radius: 10px;
   margin-top: 5px;
}

.wyn_nick {
float: left;
margin-right: 220px;
}

.wyn_steam {
float: left;
margin-right: 240px;
}


.wyn_h_er {
margin: auto auto;
border-bottom: 2px solid #ccc;
}

#menu_lewe {
width:33%;
float:left;
}
#menu_prawe {
float: right;
}
.usersy > li {
  float: left;
height:25px;
background-color: #EFEFEF;
list-style-type: none;
margin-top:-3px;
}
.wlasciciel {
   background:...