Add material in library-css

library-css/material.scss

@@ -0,0 +1,23 @@
+@import '../../../../node_modules/@angular/material/theming';
+@include mat-core();
+$primary-color: (
+        0: var(--primary-color),
+        contrast: (
+                50: var(--contrast-color)
+        )
+);
+$secondary-color: (
+        0: var(--secondary-color),
+        contrast: (
+                50: var(--contrast-color)
+        )
+);
+$my-app-primary: mat-palette($primary-color, 0);
+$my-app-accent:  mat-palette($secondary-color, 0);
+$my-app-theme: mat-light-theme($my-app-primary, $my-app-accent);
+
+@include angular-material-theme($my-app-theme);
+
+.cdk-global-overlay-wrapper, .cdk-overlay-container {
+  z-index: 9999!important;
+}