Tampermonkey custom css

function addGlobalStyle(css) {
    var head, style;
    head = document.getElementsByTagName('head')[0];
    if (!head) { return; }
    style = document.createElement('style');
    style.type = 'text/css';
    style.innerHTML = css.replace(/;/g, ' !important;');
    head.appendChild(style);
}
/*  this only works, if you use the function instead of GM_addStyle
 the output of this "addGlobalStyle('body { color: white; background-color: black; }');",

will be "body { color: white !important; background-color: black !important; }');" */

Source: stackoverflow.com

Similar codes

1 vote100 views1 answer
Style direction
CSS
2 votes112 views2 answers
How we use backdrop-filter css property
CSS
2 votes102 views2 answers
How to add box shadow to all sides css
CSS
1 vote93 views1 answer
Unknown function 'mat-palette'
CSS
1 vote62 views1 answer
Ionic create project css
CSS
0 vote100 views1 answer
Html click through image
CSS
2 votes108 views2 answers
How use befor after for image
CSS
13 votes117 views5 answers
How to add text stroke in css
CSS
4 votes153 views2 answers
Border dot css
CSS
4 votes108 views3 answers
Background with image and gradient
CSS