try...
<style>
table.lyrics,
table.lyrics tr,
table.lyrics tr td { border: none; padding: 10px 20px; }
table.lyrics tr td.trans { border-left: 1px solid #000; }
</style>
The TD element (table data) is what holds the text, so adjust the padding on those elements. If just want the translation spacing to change:
<style>
table.lyrics,
table.lyrics tr,
table.lyrics tr td { border: none; }
table.lyrics tr td.trans { border-left: 1px solid #000;
padding: 10px 20px;
}
</style>