Code point
U+2530
Glyph appearance depends on your fonts.
U+2530
SoU+2530 BOX DRAWINGS DOWN HEAVY AND HORIZONTAL LIGHT 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+2530
9520
┰
┰
E2 94 B0
2530
00002530
%E2%94%B0
\u2530
\u2530
\u2530
\2530