If we wanted to make this work in all browsers in the most optimal fashion, we need to provide quite a bit extra. Here's a snippet from the popular blog, CSS Tricks, that describes the ideal @font-face at-rule. (Using @font-face by Chris Coyier of CSS-tricks.com, August 25, 2016, https://css-tricks.com/snippets/css/using-font-face/.)
@font-face { font-family: 'MyWebFont'; src: url('webfont.eot'); /* IE9 Compat Modes */ src: url('webfont.eot?#iefix') format('embedded- opentype'), /* IE6- IE8 */ url('webfont.woff2') format('woff2'), /* Super Modern Browsers */ url('webfont.woff') format('woff'), /* Pretty Modern Browsers */ url('webfont.ttf') format('truetype'), /* Safari, Android, iOS */ url('webfont.svg#svgFontName') ...
