css flex 布局之---骰子

<!DOCTYPE html>
<html >
<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>flex布局实例之---骰子</title>
    <style type="text/css">
    .first-face {
  display: flex;
  justify-content: center;
  align-items: center;
}

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

.second-face .pip:nth-of-type(2) {
  align-self: flex-end;
}

.third-face {
  display: flex;
  justify-content: space-between;
}
  
.third-face .pip:nth-of-type(2) {
  align-self: center;
}

.third-face .pip:nth-of-type(3) {
  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(2) {
  justify-content: center;
}

/* OTHER STYLES */

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

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, #222, #333);
}

[class$="face"] {
  margin: 16px;
  padding: 4px;
  
  background-color: #e7e7e7;
  width: 104px;
  height: 104px;
  object-fit: contain;
  
  box-shadow:
    inset 0 5px white, 
    inset 0 -5px #bbb,
    inset 5px 0 #d7d7d7, 
    inset -5px 0 #d7d7d7;
  
  border-radius: 10%;
}

.pip {
  display: block;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  margin: 4px;

  background-color: #333;
  box-shadow: inset 0 3px #111, inset 0 -3px #555;
}
    </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>