Function button_style 

pub fn button_style(variant: ButtonVariant, size: ButtonSize) -> Style

The style of a button of variant and size, for an element that is not a <button>, such as a link that leads to a form.

use hypersig::html::a;
use hypersig::{Page, Route, Signals};
use hypersig_ui::{ButtonSize, ButtonVariant, button_style};
use serde::{Deserialize, Serialize};

#[derive(Signals, Serialize, Deserialize)]
struct App {}

hypersig::routes! {
    fn pages(Router<()>);
    const SIGNUP: Route = "/signup" => signup;
}

let link = a::<App>()
    .href(SIGNUP.link())
    .css(button_style(ButtonVariant::Default, ButtonSize::Lg))
    .text("Sign up");