.info-box {
    border: 1px solid #ccc;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    background-color: #f5f5f5;
}

.highlight {
    font-weight: bold;
    color: #9d2a39;
}

.iframe-container {
    border: 1px solid #ccc;
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
}

.iframe-container object {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Estilo geral do combobox */
#planos {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-color: #f5f5f5;
    border: none;
    border-radius: 4px;
    color: #333;
    font-size: 16px;
    padding: 10px 30px 10px 10px;
    width: 100%;
    max-width: 500px;
    cursor: pointer;
  }
    
  #planos {
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 20px;
  }
    
  #planos:hover {
    background-color: #e5e5e5;
  }
    
  #planos:focus {
    outline: none;
    box-shadow: 0 0 5px rgba(136, 52, 52, 0.3);
  }
  
  /* Estilo responsivo para telas menores */
  @media (max-width: 767px) {
    #planos {
      font-size: 14px;
      padding: 8px 25px 8px 8px;
      background-size: 16px;
    }
  }