I’ve found a solution when using Impreza as theme:
Go to: Impreza -> Shop -> Cart-Side (German: Warenkorb-Seite) -> Choose “Layout: Standard”. When choosing “Layout: Compact”, the Layout is messed up.
My other question i found as well. To add a spacer between currency and number,
Go to: Woocommerce -> Settings -> Currency Options -> Position of Currency Symbol (German: Position des W?hrungssymbols). Choose “Left with Spacer”.
Nicolas