<body>
  <div class="some-div">
    <span>組織A</span>
  </div>
  <div class="parent">
    <div class="child">組織B 構成員1</div>
    <div class="child">組織B 構成員2</div>
    <div class="child">組織B 構成員3</div>
  </div>
</body>
body {
  background-color: #b3b3b3;
}

.some-div {
  background-color: #333333;
  color: #ffffff;
}

.parent {
  background-color: #eeffcc;
  max-width: 300px;
/*   margin: 0 auto; */
}
.child {
  text-align: center;
  width: 80%;
  margin: 10px 0 20px 50px;
  background-color: #6495ed;
  padding: 10px;
}

External CSS

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External JavaScript

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