How to prevent the last line from appearing?

.table_upgrade_works
{
  width: 100%;
  border-collapse: collapse;
}
.table_upgrade_works td {
  table-layout: fixed;
  word-break: break-all;
  border-bottom: 1px solid -sharpccc;
  font-size: 13px;
  text-align: center;
}
.table_upgrade_works td :nth-child(4){
  border-bottom: 1px solid -sharpfff;
}
.table_upgrade_works td {
  padding: 20px;
}

there will be four frames in total

clipboard.png
I want the last line to disappear (white)
did I write somewhere else?

Mar.15,2021

: nth-child is preceded by a space. Multiple spaces become its child elements (including selectors).


: last-child


the last line to be removed is tr , which has nothing to do with td ,

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