my custome tailwind css

tailwind.css

@font-face {
    font-family: "Roboto";
    src:url(...);
    font-weight: bold;
}

@font-face {
    font-family: "Roboto";
    src:url(...);
    font-weight: normal;
}

@tailwind base;
@tailwind components;
@tailwind utilities;

@layer base {
    body {
        font-family: "Roboto" , ...;
    }

    h1,h2,h3,h4,h5,h6 {
        display: block;
        font-weight: bold;
    }
    h1 {
        font-size: 2em;
        margin: 0.67em 0;
    }
    h2 {
        font-size: 1.5em;
        margin: 0.83em 0;
    }
    h3 {
        font-size: 1.17em;
        margin: 1em 0;
    }
    h4 {
        margin: 1.33em 0;
    }
    h5 {
        font-size: .83em;
        margin: 1.67em 0;
    }
    h6 {
        font-size: .67em;
        margin: 2.33em 0;
    }

    p {
        margin-top: 1em;
        margin-bottom: 1em;
    }
}

tailwind1.config.js

// #######
// desktop first
// #######

export default {
    theme: {
        screens: {
            'min_xs': {'min':'320px'},
            'xs': {'max':'319px'},

            'min_sm': {'min':'640px'},
            'sm': {'max':'639px'},

            'min_md': {'min':'768px'},
            'md': {'max':'767px'},

            'min_lg': {'min':'1024px'},
            'lg': {'max':'1023px'},

            'min_xl': {'min':'1280px'},
            'xl': {'max':'1279px'},

            'min_2xl': {'min':'1536px'},
            '2xl': {'max':'1535px'},
        },
        extend: {},
    },
    plugins: [],
}

tailwind2.config.js

// !