How to fix the incorrect work of your snippet in sublime text 3?

Question

Sublime Text

I create my snippet in sublime text 3. When I type webkit on the keyboard, the following text should appear:
-webkit-font-smoothing: antialiased;
text-rendering: optimizelegibility;
in an unsaved document, this works, but in a saved styles.css file, this command does not work. How can it be solved? Why is this happening?

Answer 1

webkit - probably already written in css syntax. There is exactly this command -webkit+Tab
Try to correct the call name
my-webkit in your snippet