.scb-v4-frame {
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    padding: 16px;
    overflow-y: auto;
}

.scrollable-content-box {
  border: 6px solid darkred;
  height: 400px;
}