大屏缩放

function setScale() {
    const baseWidth = 1920;
    const baseHeight = 1080;
    const scaleX = window.innerWidth / baseWidth;
    const scaleY = window.innerHeight / baseHeight;

    const html = document.querySelector("html");
    html.style.transform = `scaleX(${scaleX}) scaleY(${scaleY})`;
    html.style.transformOrigin = "top left";
    html.style.width = `${baseWidth}px`;
    html.style.height = `${baseHeight}px`;
    html.style.overflow = "hidden";
    html.style.margin = "0";
}
window.addEventListener("resize", setScale);
setScale();