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AbsoluteThickness

WMA link

AbsoluteThickness[p]

sets the line thickness for subsequent graphics primitives to p points.

• • Graphics[Table[{AbsoluteThickness[t], Line[{{20 t, 10}, {20 t, 80}}], Text[ToString[t]<>"pt", {20 t, 0}]}, {t, 0, 10}]]