Template for making a simple bookmarklet toggling css on a page.<br>
See JavaScript tab for details: copy paste its contents into a bookmark url field.<br>
<br>
Or drag example link below to bookmarks bar:<br>
<br>
<a target="_blank" href="javascript:(function(){ const id = 'my_bookmarklet_css'; const css = `\nbody.${id} * {\n background: #8881;\n outline: 1px solid #8081;\n}\n`; const toggleCSS = (css, id) => { document.body.classList.toggle(id); document.head.querySelector(`style#${id}`)?.remove?.(); document.head.appendChild(Object.assign(document.createElement("style"),{id:id,innerText:css})); }; toggleCSS(css, id); })(); ">toggle css test</a>
JavaScript
javascript:
(function(){
let id = 'my_bookmarklet_css';
id = ('_'+id).replace(/[^\w]/g,'_');
let css = `
body.${id} * {
background: #8881;
outline: 1px solid #8081;
}
`;
let toggleCSS = (css, id) => {
document.body.classList.toggle(id);
document.head.querySelector(`style#${id}`)?.remove?.();
document.head.appendChild(Object.assign(document.createElement("style"),{id:id,innerText:css}));
};
toggleCSS(css, id);
})();
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