Chrome designMode bookmarklet

designMode.js

javascript:(
function () {
    if (document.designMode === "off") {
        document.designMode = 'on';
        document.body.innerHTML += `<div id="dmbml" style="position:fixed;z-index:99999;background:white;color:black;top:-1px;left:-1px;border: 1px solid #ccc;font-family:sans-serif;">🎨 Design Mode = On<div>`;
        void 0;
    } else if (document.designMode === "on") {
        document.designMode = 'off';
        document.getElementById('dmbml').remove();
        void 0;
    }
})();