To write the Box Drawings Heavy Down And Horizontal symbol ┳ on keyboard using ALT codes; ALT+9523, just hold down the ALT key while typing the alt key code 9523. You have to use the numeric keypad💮 of your keyboarᩚᩚᩚᩚᩚᩚᩚᩚᩚ𒀱ᩚᩚᩚd. If you don not have numeric keypad, hold down the Fn and ALT keys while typing the alt code number.