Css set variable

:root {
  --main-bg-color: coral;
}

#div1 {
  background-color: var(--main-bg-color);
}

#div2 {
  background-color: var(--main-bg-color);
}

Css variables

:root {
  --first-color: #16f;
  --second-color: #ff7;
}

#firstParagraph {
  background-color: var(--first-color);
  color: var(--second-color);
}

#secondParagraph {
  background-color: var(--second-color);
  color: var(--first-color);
}

#container {
  --first-color: #290;
}

#thirdParagraph {
  background-color: var(--first-color);
  color: var(--second-color);
}

Source: developer.mozilla.org

How to use variables in css

:root {
  --clr-primary-1: hsl(205, 86%, 17%);
}

.container{
  background-color: var(--clr-primary-3);
}

Similar codes

0 vote197 views1 answer
JavaScript find common characters between the strings
CSS
0 vote171 views1 answer
Box-shadow um ganzen div
CSS
11 votes174 views1 answer
Css not class
CSS
0 vote172 views1 answer
Tint image with background color css
CSS
0 vote158 views1 answer
Get postfix version
CSS
3 votes178 views4 answers
Keep aspect ratio of image css
CSS
0 vote185 views1 answer
How to make my list unstyled
CSS
0 vote162 views2 answers
How set image at top in wordpress
CSS
1 vote197 views2 answers
How to make background more darker with css
CSS
1 vote125 views2 answers
Css darken
CSS