This inspection verifies that the CSS font-family property contains a
generic font name as a fallback alternative.

我添加的字体如下：

.my_text {
    font-family: 'DINPro-Medium';
}

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

我不明白问题是什么.