Beausite Classic with Roboto Mono in action on glassworks.io

Under the hood

.header-1 { font-family: BeausiteClassicWeb, -apple-system, system-ui, "Helvetica Neue", Helvetica, sans-serif; font-size: 64px; font-style: normal; font-weight: 600; letter-spacing: -1px; line-height: 62px; text-transform: none; color: #000000; }
.content-1 { font-family: RobotoMono, Menlo, "Courier New", Consolas, "DejaVu Sans Mono", monospace; font-size: 15px; font-style: normal; font-weight: 500; letter-spacing: normal; line-height: 27px; text-transform: none; color: #000000; }
.content-2 { font-family: BeausiteClassicWeb, -apple-system, system-ui, "Helvetica Neue", Helvetica, sans-serif; font-size: 18px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 25px; text-transform: none; color: #000000; }
.content-3 { font-family: RobotoMono, Menlo, "Courier New", Consolas, "DejaVu Sans Mono", monospace; font-size: 14px; font-style: normal; font-weight: 500; letter-spacing: normal; line-height: 14px; text-transform: none; color: #000000; }