.notistack-MuiContent:before{content:"";width:6px;position:absolute;top:8px;bottom:8px;left:8px;border-radius:6px}.notistack-MuiContent-error:before{background-color:#e53935}.notistack-MuiContent-info:before{background-color:#1976d2}.notistack-MuiContent-warning:before{background-color:#ffa000}.notistack-MuiContent-success:before{background-color:#43a047}