<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.lista {
display: flex;
}
.circulo {
background: rgb(123, 123, 123);
padding: 5px;
border: 1px solid #000;
border-radius: 50%;
width: 20px;
display: flex;
justify-content: center;
align-items: center;
text-align: center;
flex-direction: row;
margin: 0 .2em;
}
.circulo:nth-child(5) {
background: red;
padding: 5px;
border: 1px solid #000;
border-radius: 50%;
width: 20px;
display: flex;
justify-content: center;
align-items: center;
text-align: center;
flex-direction: row;
margin: 0 .2em;
}
</style>
</head>
<body>
<div class="lista">
<span class="circulo">1</span>
<span class="circulo">2</span>
<span class="circulo">3</span>
<span class="circulo">4</span>
<span class="circulo">5</span>
</div>
</body>
</html>