Need to modify the width of only one field.

I used the designer tool to remove the space between lines, but it "set" the width of the fields at the same time. Its fine except for one that needs to be bigger. 

You can inject the css code below to increase the width of the Appointment Duration field.

#cid_7 {

    width: 390px;

    max-width: 390px!important;

}

#input_7{

    width: 390px;

    max-width: 390px!important;

}

The form should now look like the screenshot below.

Do let us know if you need further assistance.
Regards.

Perfect, thanks!