Squared Minus
⊟
UNICODE
U+0229FHEX CODE
⊟HTML CODE
⊟HTML ENTITY
⊟CSS CODE
\229F // html example
<span>⊟</span> // css example
span {
content: "\229F";
} ⊟
U+0229F⊟⊟⊟\229F // html example
<span>⊟</span> // css example
span {
content: "\229F";
}