<ul class="wrapper">
  <li>Alfa</li>
  <li>Bravo</li>
  <li>Charlie</li>
  <li>Delta</li>
</ul>

* { box-sizing: border-box; }

body {
  padding: 40px;
  background-color: rgb(255,255,255);
  color: rgb(61, 63, 112);
  font: 1.8em/1.4 "Open Sans", sans-serif;
}

.wrapper {
  list-style: none;
  margin:0;
  padding: 0;
  display: flex;
  justify-content: space-between;
}

.wrapper li {
  border-radius: 50%;
  border: 5px solid rgb(61, 63, 112);
  background-color: rgba(61, 63, 112,.7);
  color: #fff;
  display: block;
  padding: 10px;
  height: 5em;
  width: 5em;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}