Clipperz is an online vault and password manager that knows nothing about you and your data. Everything you submit is locally encrypted by your browser before being uploaded to Clipperz. The encryption key is a passphrase known only to you and Clipperz could never access your data. Clipperz is built upon open proven and trusted encryption algorithms.
Using CSS by https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-color-scheme