CODE EXAMPLE FOR CSS

how to change the theme of a website using css

.theme-light {   --color-primary: #0060df;   --color-secondary: #fbfbfe;   --color-accent: #fd6f53;   --font-color: #000000;}.theme-dark {   --color-primary: #17ed90;   --color-secondary: #243133;   --color-accent: #12cdea;   --font-color: #ffffff;}