44-60 
``` css
.attach__icon
{
    display: inline-block;

    margin-right: 0.5em;
    padding: 0 0.2em;

    text-align: center;

    border: 1px solid rgba(0, 0, 0, 0.3);
    border-radius: 0 0.4em 0 0;

    ::before
    {
        content: '???';
    }
}
```