title: Got warning after update angular 7 to angular 8 version
body: <p>I updated the packages and after starting npm i got 2 warning which are follows:</p>
  
  <blockquote>
    <p>WARNING in ./src/assets/scss/style.scss (./node_modules/@angular-devkit/build-angular/src/angular-cli-files/plugins/raw-css-loader.js!./node_modules/postcss-loader/src??embedded!./node_modules/sass-loader/lib/loader.js??ref--13-3!./src/assets/scss/style.scss)
    Module Warning (from ./node_modules/postcss-loader/src/index.js):
    Warning</p>
    
    <p>(5013:3) end value has mixed support, consider using flex-end instead</p>
    
    <p>WARNING in ./src/assets/scss/style.scss (./node_modules/@angular-devkit/build-angular/src/angular-cli-files/plugins/raw-css-loader.js!./node_modules/postcss-loader/src??embedded!./node_modules/sass-loader/lib/loader.js??ref--13-3!./src/assets/scss/style.scss)
    Module Warning (from ./node_modules/postcss-loader/src/index.js):
    Warning</p>
    
    <p>(5019:3) end value has mixed support, consider using flex-end instead</p>
  </blockquote>