The flag of Switzerland is a red square with a white cross inside. The cross is placed in such a way that each arm of the cross touches the edge of the square. The background of the square is red, while the cross itself is white. This design is simple and eye-catching, which has contributed to the popularity of the flag. For children, it is a great way to learn about the colors and shapes used in the Swiss flag. They can have fun coloring the red square and filling in the white cross with their favorite color.