The code for style.css is: @charset "utf-8"; /* sty.css */ @font-face { font-family: sans; src: url(./fonts/sansation_bold.woff) format('woff'); font-weight: bold; } @font-face { font-family: sans; src: url(./fonts/sansation_light.woff) format('woff'), url(./fonts/sansation_light.ttf) format('truetype'); } .sans { font-family: sans; } @font-face { font-family: alfissa; src: url('./fonts/Alfissa.woff2') format('woff2'), url('./fonts/Alfissa.ttf') format('truetype'); font-weight: normal; font-style: normal; font-display: swap; } h1, div { font-family: alfissa; }