daux.io/themes/daux_singlepage/scss/_fonts.scss

:root {
    --font-family-text: -apple-system,
        ".SFNSText-Regular",
        "San Francisco",
        "Roboto",
        "Segoe UI",
        "Helvetica Neue",
        "Lucida Grande",
        Arial,
        sans-serif;
    --font-family-monospace: Monaco, Menlo, Consolas, "Lucida Console", "Courier New", monospace;
    --font-family-heading: "Roboto Slab", var(--font-family-text);
}

/*! Generated by Font Squirrel (https://www.fontsquirrel.com) */

@font-face {
    font-family: "Roboto Slab";
    font-style: normal;
    font-weight: 300;
    src: url("../fonts/robotoslab-light.eot");
    src:
        url("../fonts/robotoslab-light.eot?#iefix") format("embedded-opentype"),
        url("../fonts/robotoslab-light.woff2") format("woff2"),
        url("../fonts/robotoslab-light.woff") format("woff"),
        url("../fonts/robotoslab-light.ttf") format("truetype"),
        url("../fonts/robotoslab-light.svg#roboto_slablight") format("svg");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2212, U+2215;
}

@font-face {
    font-family: "Roboto Slab";
    font-style: normal;
    font-weight: 400;
    src: url("../fonts/robotoslab-regular.eot");
    src:
        url("../fonts/robotoslab-regular.eot?#iefix") format("embedded-opentype"),
        url("../fonts/robotoslab-regular.woff2") format("woff2"),
        url("../fonts/robotoslab-regular.woff") format("woff"),
        url("../fonts/robotoslab-regular.ttf") format("truetype"),
        url("../fonts/robotoslab-regular.svg#roboto_slabregular") format("svg");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2212, U+2215;
}

@font-face {
    font-family: "Roboto Slab";
    font-style: normal;
    font-weight: 700;
    src: url("../fonts/robotoslab-bold.eot");
    src:
        url("../fonts/robotoslab-bold.eot?#iefix") format("embedded-opentype"),
        url("../fonts/robotoslab-bold.woff2") format("woff2"),
        url("../fonts/robotoslab-bold.woff") format("woff"),
        url("../fonts/robotoslab-bold.ttf") format("truetype"),
        url("../fonts/robotoslab-bold.svg#roboto_slabbold") format("svg");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2212, U+2215;
}