div {
    border: 1px solid #000;
    padding: 10px;
    margin: 10px;
}  

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f0f0;
}

span.new-tag {
    color: red;    
}

span.sale-tag {
    color: green;
}

.counter-container {
    display: flex;
    flex-direction: row;
    gap: 10px;
}

.container-item {
    flex: 1;
}

.calculator-container {
    display: flex;
    flex-direction: row;
    gap: 10px;
}