Code point
U+2500
Glyph appearance depends on your fonts.
U+2500
SoU+2500 BOX DRAWINGS LIGHT HORIZONTAL is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Box Drawing block.
Choose the representation you need, then copy its value.
U+2500
9472
─
─
─
E2 94 80
2500
00002500
%E2%94%80
\u2500
\u2500
\u2500
\2500