Colorare una tabella

https://www.w3schools.com/howto/tryit.asp?filename=tryhow_js_sort_table


<style>
table {
border-spacing: 0;
width: 100%;
border: 1px solid #ddd;
}

th, td {
text-align: left;
padding: 16px;
}

tr:nth-child(even) {
background-color: #f2f2f2
}
</style>