body {
  padding: 20px;
}
.mdui-card {
  color: #222;
}

@media (min-width: 720px) {
  .mdui-card .mdui-card-content {
    float: left;
  }
  .mdui-card .mdui-card-actions {
    float: right;
  }
}

@media (min-width: 1024px) {
  .mdui-card .mdui-card-content {
    font-size: 18px;
  }
}