Code point
U+2533
Glyph appearance depends on your fonts.
U+2533
SoU+2533 BOX DRAWINGS HEAVY DOWN AND 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+2533
9523
┳
┳
E2 94 B3
2533
00002533
%E2%94%B3
\u2533
\u2533
\u2533
\2533