Keep af:inputText component width the same either when it is enable or read only

There is a nasty behavior on this component that which is to have different width when it is enable and when readonly. To fix this use contentStyle="width:70.0px property.
<af:inputText contentStyle="width:70.0px;">

What is ContentStyle

According to JDevelopers help documentation ContentStyle is the style of the content piece of the component. You can style width by setting this attribute like this: width: 100px.