html {
    box-sizing: border-box;
}

*, *:before, *:after {
    box-sizing: inherit;
}

* {
    outline: 0;
}

@font-face {
    font-family: 'Roboto';
    font-style: normal;
    font-weight: 400;
    src: url(../font/Roboto-Regular.ttf);
    font-display: swap;
}

body {
    margin: 10;
    font-family: 'Roboto';
    height: 100vh;
    padding: 3rem 0;
    color: #555;

}

a.active {
    font-weight: bold;
}