/CSS/How to do addition or subtraction on CSS Variables?

How to do addition or subtraction on CSS Variables?

:root {
  --margin: 50px;
}

body {
  margin: 0 100px;
  border:1px solid;
}

.box-1 {
  background: red;
  height: 100px;
  width: 200px;
  margin-left: calc(-1 * var(--margin));
}

.box-2 {
  background: green;
  height: 100px;
  width: 200px;
  margin-left: calc(-1 * (-1 * var(--margin))); /* You can also nest calculation */
}

Source: stackoverflow.com

How to do addition or subtraction on CSS Variables?

:root {
  --margin: 50px;
  --margin--: calc(var(--margin) * -1));
 /* 
 while you may simply write like below
 but I love to use as above 
 coz, we'll only need to change value 
 in one place if needed
 */
 /* --margin--: -50px; */
}

.positive-margin {
  margin: var(--margin);
}
.negative-margin {
  margin-left: var(--margin--);
}

Source: stackoverflow.com

Similar codes

0 vote431 views1 answer
Show modal in bootstrap 4
CSS Bootstrap
0 vote400 views1 answer
Html link local css file
CSS
0 vote362 views1 answer
Wow animation run in multiple times at once
CSS
175 votes441 views6 answers
Background css image
CSS
8 votes406 views6 answers
Aos animation
CSS
1 vote431 views1 answer
How to make font awesome responsive bootstrap
CSS Bootstrap
5 votes323 views1 answer
Vertical align items in div
CSS
3 votes362 views3 answers
How to change paragraph text color to orange - css
CSS
0 vote336 views1 answer
Google script css link
CSS
0 vote365 views1 answer
Css hide timeline
CSS