How to pass parameters to css classes

Question

I want to know is it possible to add some flexibility to css via this:

where .round i

Answer 1

You could do something similar but not exactly the way you've put it.

CSS

.radius{
    border-radius: 10px;
    border: 1px solid red;
}

.r5{
    border-radius:5px;
}

HTML

Hello World


Hello World

Working Example

In the example above the red border will be retained but the border-radius will change.

Note that you don't start class names with numbers, hence r5 rather than 5