Values are not rounded properly

[jednano]

For example, I have a root value of 14px and the following CSS:

.foo {   
    font: 300 1.14286rem/1.28571rem 'Source Sans Pro', Arial, sans-serif;
}

Which transpiles into:

.foo {
    font: 300 16px/17px 'Source Sans Pro', Arial, sans-serif;
}

But 14px * 1.28571 === 17.99994. I would expect 16px/18px instead.

[iamvdo]

It seems a feature: https://github.com/robwierzbowski/node-pixrem/blob/master/spec/pixrem-spec.js#L71-L76

Modifying this will introduce a breaking change, so v2.

What is the best option:

• round values to the nearest integer
• don't round values at all and let browsers deal with that (It sounds better to me)

[jednano]

I think the right thing to do in this case is to expose a unitPrecision option (default: 5) and break the version. My philosophy there is aligned with TJ Holowaychuk, who believes in breaking things fast if it benefits the [software]. Here's an example of unitPrecision in action.