Hi. I need to hide employee dropdown. On this site I rode that I can do it with custom CSS : https://codecanyon.net/item/amelia-enterpriselevel-appointment-booking-wordpress-plugin/22067497/comments?page=17

I am not a master of CSS, but I tried to hide it with this. I tried to write display:none to every line of code that could be this dropdown:

.el-form-item am-select-employee-option: {
    display: none;
}

.el-form-item am-select-employee-option: 
{
display: none;
}

.el-form-item__label:
{
display: none;
}

.el-form-item__content:
{
display: none;
}

.el-select:
{
display: none;
}

.el-form-item am-select-employee-option:
{
display: none;
}

Unfortunately it's not working. Could you help me with this?
Thanks in advance!

Sorry, I got one extra question.

I created custom field for "nick" of the player that is booking. 
Is it possible to make this custom field check if the nick is unique?

So there is no situation that I got 2 booked players with the same nick.
I plan to create a leaderboard with them.

Thanks.

Thanks, that actually helped! Thank You SO MUCH! 

But I got another question. Is it possible to hide duration of "EXTRA" - the extra service clients can add to basic service. In attached file I am showing exactly what I mean.

Hope it's not a problem it's translated to Polish!

Thank You in advance!

Oh! And it would be also hand to hide how many extra client is choosing. In my case I need client to choose only 1 "extra", but it's actually a bundle for 8 people that are attending event. So the number "1" by the extra is a little confusing.

Thanks again!