Dropdown - Select One - Required

Hello, i created a dropdown with the following options
Select One
y=Yes
n=No
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This dropdown is a mandatory field but as default the first option "Select One" is selected and the validation passes which is wrong in my case.
How can i define the first option as disabled selected?

Found it, it must be done like this:
=Select One
y=Yes
n=No

Hi
​
Unfortunately this is not working.
​
I have
​
=Please select
yes=Yes
no=No
​
But in Frontend the first entry "Please select" is not shown, just an empty line there in the dropdown. Source code looks like this:
​

<div class="item active selected" data-value=""></div>

​
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I use CF 6.0.21, do I need to add another code?
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Thanks.
​
Patrick

No that should be it. Make sure you don't have any empty lines in there

Even with spaces ( = Please select) it works.
Make sure you don't have anything in the Selected values.
And if you want upload your form for a deeper look.

Hi
​
Thanks a lot to both of you.
​
I had an empty line at the end of the options. Removing this empty line did solve the problem.