02_Service – SUBTRACTION
SUBTRACTION -
.color-block {
display: inline-block;
...
01_Service – ADDITION
ADDITION +
.color-block {
display: inline-block;
...
03_Service – MULTIPLICATION
http://www2.manymanyplus.com/wp-content/uploads/2021/02/service-03600x600-1.mp4
MULTIPLICATION x
.color-block {
display: inline-block;
...
04_Service – DIVISION
DIVISION ÷
.color-block {
display: inline-block;
...