/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

1 vote171 views5 answers
Ease in out
CSS
0 vote155 views2 answers
Bootstrap 4 scss angular 8
CSS
0 vote185 views1 answer
Table td css
CSS
0 vote180 views2 answers
Add a comment in css
CSS
4 votes174 views3 answers
Css moz webkit generator
CSS
13 votes169 views5 answers
How to add text stroke in css
CSS
2 votes187 views1 answer
Css prevent text blue selection
CSS
0 vote186 views1 answer
Html css on class
CSS
1 vote117 views1 answer
Css div text size
CSS
1 vote190 views1 answer
Css how to make something italized
CSS