.source-preview {
    @apply relative;
    code {
        &:before {
            content: "HTML";
            @apply font-roboto font-medium px-4 py-2 block absolute top-0 right-0 rounded-bl bg-gray-300 bg-opacity-70;
        }
        &.javascript:before {
            content: "JS";
        }
    }
}
