Here is the css: one is Regular and other one is Bold but both has same font-family name.

How to differentiate and use it in our stylesheet?

```
@font-face {
    font-family: 'Montserrat';
    src: url('fonts/Montserrat-Bold.eot');
    src: url('fonts/Montserrat-Bold.eot?#iefix') format('embedded-opentype'),
        url('fonts/Montserrat-Bold.woff') format('woff'),
        url('fonts/Montserrat-Bold.ttf') format('truetype');
    font-weight: bold;
    font-style: normal;
}

@font-face {
    font-family: 'Montserrat';
    src: url('fonts/Montserrat-Regular.eot');
    src: url('fonts/Montserrat-Regular.eot?#iefix') format('embedded-opentype'),
        url('fonts/Montserrat-Regular.woff') format('woff'),
        url('fonts/Montserrat-Regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

```