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when working with angular if you apply styles just with id or class, it may not apply..

Suppose there is <div> or any element and you want to apply style class general , usually we define css class as below.

.general {   
   padding-top : 2px;   
   padding-bottom : 0px; 
} 

And you see no result, to make it work replace above style with below snippet.

:host /deep/ .general {
  padding-top : 2px;
  padding-bottom : 0px;
}