css3 flex

<!DOCTYPE html>
<html>
<head>
<style>
.first-face {
  display: flex;
  justify-content: center;
  align-items: center;
}

.second-face {
  display: flex;
  justify-content: space-between;
}

.second-face .pip:nth-of-type() {
  align-self: flex-end;
}

.third-face {
  display: flex;
  justify-content: space-between;
}

.third-face .pip:nth-of-type() {
  align-self: center;
}

.third-face .pip:nth-of-type() {
  align-self: flex-end;
}

.fourth-face, .sixth-face {
  display: flex;
  justify-content: space-between;
}

.fourth-face .column, .sixth-face .column {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.fifth-face {
  display: flex;
  justify-content: space-between;
}

.fifth-face .column {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.fifth-face .column:nth-of-type() {
  justify-content: center;
}

/* OTHER STYLES */

* {
  box-sizing: border-box;
}

html, body {
  height: %;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  vertical-align: center;
  flex-wrap: wrap;
  align-content: center;
  font-family: 'Open Sans', sans-serif;

  background: linear-gradient(top, #, #);
}

[class$="face"] {
  margin: 16px;
  padding: 4px;

  background-color: #e7e7e7;
  width: 104px;
  height: 104px;
  object-fit: contain;

  box-shadow:
    inset  5px white,
    inset  -5px #bbb,
    inset 5px  #d7d7d7,
    inset -5px  #d7d7d7;

  border-radius: %;
}

.pip {
  display: block;
  width: 24px;
  height: 24px;
  border-radius: %;
  margin: 4px;

  background-color: #;
  box-shadow: inset  3px #, inset  -3px #;
}
</style>
</head>
<body>
<div class="first-face">
  <span class="pip"></span>
</div>
<div class="second-face">
  <span class="pip"></span>
  <span class="pip"></span>
</div>
<div class="third-face">
  <span class="pip"></span>
  <span class="pip"></span>
  <span class="pip"></span>
</div>
<div class="fourth-face">
  <div class="column">
    <span class="pip"></span>
    <span class="pip"></span>
  </div>
  <div class="column">
    <span class="pip"></span>
    <span class="pip"></span>
  </div>
</div>
<div class="fifth-face">
  <div class="column">
    <span class="pip"></span>
    <span class="pip"></span>
  </div>
  <div class="column">
    <span class="pip"></span>
  </div>
  <div class="column">
    <span class="pip"></span>
    <span class="pip"></span>
  </div>
</div>
<div class="sixth-face">
  <div class="column">
    <span class="pip"></span>
    <span class="pip"></span>
    <span class="pip"></span>
  </div>
  <div class="column">
    <span class="pip"></span>
    <span class="pip"></span>
    <span class="pip"></span>
  </div>
</div>
</body>
</html>