.devis-preview .p-l-r-20 {
    padding: 0 30px 0 30px;
}

.devis-preview {
    background: white;
    display: block;
    margin: 0 auto;
    margin-bottom: 0.5cm;
}

.devis-preview .a4-container {
    height: 71%;
}

.devis-preview .a4-container .a4-content {
    height: 100%;
}


.devis-preview .table-lines {
    width: 100%;
    border-collapse: collapse;
}

.devis-preview .table-lines th {
    border-bottom: 1px solid;
    border-left: 1px solid;
    border-top: 1px solid;
    text-align: center; 
    padding: 5px;
    font-weight: bold;
}

.devis-preview .table-lines th:last-child {
    border-right: 1px solid;
}

.devis-preview .table-lines td.table-cell {
    border-bottom: 1px solid;
    border-right: 1px solid;
    border-left: 1px solid;
    border-top: none;
    padding: 5px;
}