Inside Borders in Tables are Disappearing (RH10)

[ktbFL]

So... I created a table style (_FIELD_Defs) - twice now.... and it looks fine the first go 'round.  However, if I insert a new table and apply that same style, the inside borders disappear.  What am I doing wrong?  This is the first time I have seen this happening with this table.  Pleeeze HELP!

table.Field_Defs td.t1st {

border-left-style: Solid;

border-left-width: 1px;

border-right-style: Solid;

border-right-width: 1px;

border-top-style: Solid;

border-top-width: 1px;

border-bottom-style: Solid;

border-bottom-width: 1px;

}

table._FIELD_Defs {

x-1st-row: 1;

x-1st-row-name: t1st;

border-left-style: Solid;

border-right-style: Solid;

border-top-style: Solid;

border-bottom-style: Solid;

border-left-width: 1px;

border-right-width: 1px;

border-top-width: 1px;

border-bottom-width: 1px;

border-left-color: #565656;

border-right-color: #565656;

border-top-color: #565656;

border-bottom-color: #565656;

x-1st-col: 1;

x-1st-col-name: t1st;

x-last-col: 1;

x-last-col-name: last;

x-border-spacing: 0px;

}

table._FIELD_Defs tr.t1st td {

font-family: Arial;

font-size: 10pt;

background-color: #808080;

color: #ffffff;

font-weight: bold;

font-style: italic;

}

table._FIELD_Defs td.t1st {

font-family: Arial;

font-size: 10pt;

border-right-style: ;

border-right-width: .5px;

border-right-color: #808080;

}

table._FIELD_Defs td.last {

font-family: Arial;

font-size: 10pt;

border-left-style: ;

border-left-width: ;

border-left-color: #808080;

}

table._FIELD_Defs td {

padding-left: 3px;

padding-right: 3px;

padding-top: 2px;

padding-bottom: 0px;

[ktbFL]

ADDENDUM:  SO.. I thought if I just used the table that had the borders set up the way I want that I could just copy and paste and use the table over and over... HOWEVER, when I copy and paste, the inside borders disappear again?  I see that I can set this up in Table Properties, but does that mean I have to redo the borders every time I create a new table?  I don't recall this being the case previously.

In this example, all inside borders were there when I entered the info (now blurred) into each cell.  Once I copy and pasted, the borders disappeared again: