<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
#AKG{
width:400px;
margin: 20PX auto;
float: left;
position: relative;
left: 50%;
}
#AKG div{
position: relative;
left: -50%;
}
#AKG span{
display: inline-block;
width:3em;
height: 3em;
border:1px solid black;
border-radius: 50%;
text-align: center;
margin:auto;
}
.black{
background: #000000 ;
color: silver;
}
.yellow{
background: yellow;
color: black;
}
.green{
background:green;
color:white;
}
.red{
background: red;
color:white;
}
</style>
</head>
<body>
<h1>AKG</h1>
<div id="AKG">
<div>
<span class="black">AKG</span>
<span class="yellow">AKG</span>
<span class="green">AKG</span>
<span class="red">AKG</span>
</div>
</div>
</body>
</html>