.cot2{
    display: flex;
    gap: 2px; 
    align-items: stretch;
  }
  .cot2 .cot{
    flex: 1;   
    padding: 16px;
    border: 1px solid #ddd;
    border-radius: 2px;
    box-sizing: border-box;
  }
  @media (max-width: 768px){
    .cot2{
      flex-direction: column;
    }
  }