visual studio 2017 doesn't accept minify css

Question

I Minified a css file with https://cssminifier.com/ but when I want to copy the minify result to visual studio 2017 it is not minify and it's the same as befor .

there is a lot of spaces , new lines and ....

but when I tried with visual studio 2015 , It was ok and worked fine .

is there any special setting ?

an example of code is :

.animated {
-webkit-animation-duration: 1s;
animation-duration: 1s;
-webkit-animation-fill-mode: both;
animation-fill-mode: both;
z-index: 100
}

.animated.infinite {
    -webkit-animation-iteration-count: infinite;
    animation-iteration-count: infinite
}

Answer 1

Slight changes to @SSED's answer on Sep 22 2017 to account for changes in Visual Studio 2017.

Please navigate to Menu: Tools -> Options -> Text Editor -> CSS -> Advanced -> Formatting-> Format on Paste : Off