Less is used to reduce the Css file size and easy maintainable code for the feature. If you want to change the code you can update on single location it will make changes on all the parts of the code. In this Less variable play the very important role.
You can declare the variable in the less starting with @ symbol. And followed by your variable name.
Like this
@text-color: #333;
Example:
@text-color: #333;
p{
color: @text-color; // Value is #333 we declare above.
font-size:12px;
}
