JetPack Contact Form Field Title

I have the coding below in Edit CSS to change all of the field labels and the options for field labels on a Jetpack Contact Form. I want to change the font size for just one of the field labels from all the other field labels and options. How can that be done via coding in Edit CSS?

My site is dewittdemocrats.org and the one field label I want to change the font size for is the Event Name field label on the Contact Form of Events page.

/* =Contact Form
————————————————————– */
/*Following coding changes the font style for contact form labels, e.g., Name, Comments, etc.
*/

.contact-form div label {
font-family: Verdana, Verdana;
font-size: 14px;
}

/*Following coding changes the font style for the contact form options under a label, i.e., checkbox, radial button options, e.g., The keep me in the loop form options like Making a financial contribution, Helping with bulk mailing, etc.
*/
.contact-form div label.checkbox, .contact-form div label.radio {
font-family: Verdana, Verdana;
font-size: 14px;
}

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