How to remove spaces between tags in atom?

Question

atom

hello, please tell me, I used a regular expression in notepad ++ that removed spaces between the contents of tags, for example: <price>1 200 000 000</price>
<price>[^\s<>]*\K\s
more precisely, it finds spaces, but does not replace with emptiness, I do not specify anything in "replace with"
but in atom it does not work, that can be done?