Add border on row in grid with border-collapse: separate

Question

I developed a data grid. I intend that the rows on that grid are separate, so I used border-collapse: separate.

My problem is that using this I can't add a border to the line.

Is there a way to add border to the row and keep the table rows separate?

Example - Stackblitz

<dx-data-grid style="margin-top:50px" class="tableTask" [dataSource]="datas"
    [showColumnLines]="false" [showRowLines]="false" [columnAutoWidth]="true" [allowColumnResizing]="true">
    <dxo-header-filter [visible]="true"></dxo-header-filter>
    <dxi-column dataField="ID" dataType="text" caption="ID"></dxi-column>
    <dxi-column dataField="Name" dataType="text" caption="Name"></dxi-column>
</dx-data-grid>

css

::ng-deep .tableTask .dx-datagrid-headers  {
letter-spacing: 0;
color: #4D4F5C !important;
font-weight: bold !important;
font-size: 13px !important;
background-color:#EDF3F9;
    -ms-touch-action: pinch-zoom;
    touch-action: pinch-zoom;
    border-radius: 8px 8px 0px 0px;
    height: 60px;
    line-height: 18px;
    border-bottom: none !important;
}

::ng-deep .tableTask .dx-datagrid-rowsview .dx-row {
  border-top: 1px solid transparent;
  border-bottom: 1px solid transparent;
  background: #FFFFFF 0% 0% no-repeat padding-box;
  box-shadow: 0px 3px 20px #BCBCCB47;
  border-radius: 8px;
  opacity: 1;
}

::ng-deep .tableTask .dx-datagrid-rowsview .dx-row {
  line-height: 50px;
  height: 60px;
}

::ng-deep .tableTask .dx-datagrid-headers + .dx-datagrid-rowsview {
   border-top: 0 !important;
}

::ng-deep .tableTask .dx-datagrid-content .dx-datagrid-table {
  border-collapse: separate !important;
  border-spacing: 0px 16px !important;
}

::ng-deep .tableTask .dx-datagrid-headers .dx-datagrid-table .dx-row > td {
    border-bottom: none;
}

Answer 1

If you want keep using border-collapse: separate.

You can simply add border to each td of each row :

::ng-deep .tableTask .dx-datagrid-rowsview .dx-row td {
  border-bottom: 1px solid red;
}

Add the code above at the end of your CSS.

And if you want to add a full border to your row you can use this :

::ng-deep .tableTask .dx-datagrid-rowsview .dx-row td{
  border-bottom: 1px solid red;
  border-top: 1px solid red;
} 
::ng-deep .tableTask .dx-datagrid-rowsview .dx-row td:first-child {
  border-left: 1px solid red !important;
}
::ng-deep .tableTask .dx-datagrid-rowsview .dx-row td:last-child {
  border-right: 1px solid red;
} 

I have added !important to border-left because there's already some CSS.