.zone-depot {
    width: 590px;
    height: 160px;
    border: 2px dashed #007bff;
    border-radius: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-content: flex-start;
    background-color: #e9ecef;
    position: relative;
    padding: 10px;
    box-sizing: border-box;
}
   @media (max-width:480px){.drop-zone,.zone-depot{width:360px;height:270px;}.addition-input{width:60px;height:30px;font-size:large}}