当我部署完自己的第一篇技术博用手机测试时,发现其中的代码部分字体明显变大了,和周围格格不入.因为博客主题是自己设计实现的,这个明显的样式问题就像是一根来挑衅的鱼刺,让人甚是不爽.
具体表现如下图左
这到底是怎么回事呢?我对该部分的相关样式属性定义如下:
font-size: 0.8rem;font-family: PT Mono, Consolas, Monaco, Menlo, monospace;
按理来说,在手机上代码部分也应该按比例缩小才对,为什么不起作用呢?而此时我又发现该问题貌似只出现在了iPhone手机上,而在android手机上表现良好.
问题原因:原来,当你给某一元素字体应用一个回退(fallback,即font-family的值为一个有序字体集)系统时,浏览器会从前到后逐一尝试去支持该字体,一旦不支持前面的某些字体时,由于字体间的分辨率不同,即使定义同样的 font-size也会有不同的视觉大小,这就是上述现象产生的原因.
解决方法: -webkit-text-size-adjust
text-size-adjust该属性使得具有不同分辨率的字体经过计算在手机设备上保持同样的大小,只需要你将它的值设为一个合适的百分比(比如我设的是100%).而 -webkit-text-size-adjust针对iPhone解决该问题.

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