Control how a place holder in an input looks

Centered Placeholder

 <input f-p-6px f-round f-t-16px f-b-none f-w-90 f-lg  type="text" placeholder="Centered Placeholder" f-placeholder-center />

Inverse

 <input f-p-10px f-round f-t-16px f-b-none f-w-90 f-lg f-bg-blue-100 type="text" placeholder="Centered Placeholder" f-placeholder-center />