@charset "UTF-8";

.step_box.size-xs {
  width: 350px;
  box-sizing: border-box;
}

@media (max-width: 480px) {
  .step_box.size-xs {
    width: 100%;
    max-width: 300px; 
  }
}

@media (max-width: 768px) { 
  .step_box.size-xs {
    width: 90%;     
    max-width: 320px;
  }
}