html {
box-sizing: border-box;
}
*, *:before, *:after {
box-sizing: inherit;
}
//$family-sans-serif: "Roboto", "Helvetica", "Arial", sans-serif;
$family-sans-serif: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";