Create a series of seven interactive web buttons, each displaying a number from 1 to 7. The design should blend elements of anime and fantasy. Each button should have a unique, visually appealing background related to a different anime or fantasy theme, such as magical landscapes, futuristic cityscapes, or mythical creatures. The numbers should be prominently featured in a bold, stylish font that matches the theme of the background. The overall aesthetic should be vibrant, engaging, and suitable for a web interface --niji 6