Regular expression with line break - help needed

[Mufasa]

Hello guys, if there is an empty line like in this example, how must the regex look like?
DOM-text looks like this

um Ihren kostenlosen Zugang zu aktiviern, müssen Sie folgenden Link anklicken

http://www.domain.com/activate123xyz

Sollte dieser Link nicht funktionieren, kopieren Sie ihn bitte

I need the whole domain but when I use

(?<=anklicken)[\w\W]*(?=Sollte)

I get 2 empty lines before the result. Would appreciate some help.

 

[CSS]

dirty hack:

(?<=anklicken[\w\W]*)http.*(?=\r\n \r\nSollte)

or you can use another way, this regex will find any url:

(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?

 

[Mufasa]

dirty hack:

(?<=anklicken[\w\W]*)http.*(?=\r\n \r\nSollte)

or you can use another way, this regex will find any url:

(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?

thanks, worked great in that case.
however i dont get any result when trying with this DOM

<br>
Dein Freischaltecode lautet:<br>
<br>
XYZ123<br>
<br>
Trage diesen Code im Browserfenster ein.

any idea?

 

[CSS]

thanks, worked great in that case.
however i dont get any result when trying with this DOM

<br>
Dein Freischaltecode lautet:<br>
<br>
XYZ123<br>
<br>
Trage diesen Code im Browserfenster ein.

any idea?

yeah, i have:

(?s)(?<=(\<br\>\r\n){2}).*?(?=<br>\r\n)