.solid-tool-box {
  padding: 24px;
  border: 1px solid #ddd;
  border-radius: 12px;
  background: #fafafa;
}

.solid-tool-box h2 {
  margin-top: 0;
}

#solidTestBtn {
  padding: 10px 16px;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}

#solidTestResult {
  margin-top: 12px;
  font-weight: 600;
}