Subbox Fields Appear Differently on Prose site

I’ve just replaced MailChimp embed code with the Genesis eNews Extended plugin on a Studiopress/Prose site, inserting into a sidebar.

The FirstName and Email fields are differently sized in terms of height and length and spacing of the holding text. I found a response you gave to someone else (marked as resolved) that mentioned needing some code tweaking. I posted my question there but realized that since it is resolved, you may not see it. Am posting in a new post now.

I edited the CSS for each subbox separately, adding padding for the Firstname field to get it to look close to the email field, Why is this happening?

Site is

Custom CSS added:

I am having a similar problem, I used the code you recommended above, changing colors/font size/etc. For some odd reason the Firstname (subbox1) and Email (subbox) fields appear differently so I've had to micromanage them and code separately, surely that shouldn't be necessary. Why would these fields be different and is there a better way of making them look the same?

<a href="https://seniorcareadvocates-stl.com/">https://seniorcareadvocates-stl.com/</a>

.sidebar #subbox1 {
color: #333333;
font-size: 14px;
line-height: 22px;
border-radius: 5px;
box-shadow: none;
padding-left: 5px;
padding-top: 5px;
padding-bottom: 5px;
border: none;
width: 100%;
background: #EFF2DE;
}

.sidebar #subbox {
color: #333333;
font-size: 14px;
line-height: 22px;
border-radius: 5px;
box-shadow: none;
border: none;
width: 100%;
background: #EFF2DE;
}

https://www.ads-software.com/plugins/genesis-enews-extended/