How do I change Field Label style

I have a Form and I am using CustomFieldFactory which extends DefaultFieldFactory to create the fields on the form.

The Form creates fields with labels, they both look the same. How do I change the label of each field so font of the label is bold and how do I add borders to TextFields when in ReadOnly mode?

Thank You

Peter

I figured it out
added the following to the custom CSS file

.v-caption {
font-weight: bolder;
font-size: smaller;
}

input.v-textfield-readonly,
textarea.v-textarea-readonly {
border-color: darkgray;
border-width: thin;
border-style: solid;
}