* {
  box-sizing: border-box;
}

.container {
  width: 1200px;
  height: 520px;
  overflow: auto;
  background: rgb(239, 237, 254);
  border: 1px solid #000;
  border-radius: 30px 0 0 30px;
  padding: 5px;
}

article {
  display: inline-block;
  width: 240px;
  height: 200px;
  background: rgb(246, 218, 134);
  border: 1px solid #dacc95;
  border-radius: 30px;
  box-shadow: 0px 0px 10px 4px rgba(34, 60, 80, 0.2) inset;
  margin-bottom: 15px;
  margin-right: 15px;
}

.content {
  margin: 40px 20px;
}