### File

`src/select/optgroup.directive.ts`

### Metadata

Selector | `optgroup`

### Index

###### HostBindings
class

### HostBindings

class
`class: ```
Default value : `"bx--select-option"`
Defined in src/select/optgroup.directive.ts:8

    import { Directive, HostBinding } from "@angular/core";

    @Directive({
    	// tslint:disable-next-line
    	selector: "optgroup"
    })
    export class OptGroup {
    	@HostBinding("class") inputClass = "bx--select-option";
    }

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