Need help with custom list widget

I only have three fields, all text boxes. I would like them to be wider. I tried applying this custom css but it didn't change the width:
.textarea {
margin: 3px 0;
min-width: 200px;
}

What do you suggest?

The CSS selector that you are using is incorrect. Please remove the "." since it is not a class or an id. Here's the correct code:

textarea {
margin: 3px 0;
min-width: 200px;
}

Here's the result:

Hope that helps. Let us know if you need further assistance. Thank you.