(1 / parent font-size) x required pixel value = em value
（1 / 父字体大小） x 所需的像素值 = em 值
Make it so your fonts are readable, but not obscenely large, and make the font-size indicate the importance of the information.
保持文字的可读性，但不要太大，让字体的大小表现信息的重要性。
The “Log in”-link (hint: in the yellow box) should have a greater font-size — also icons would do the job.
这个“Log-in”链接（提示：在黄色色块中）字体应该更大些，或者用图标链接代替小的文字链接。

That button also lets you buy the book (in the case of a sample), skip to a specific page, bookmark, look up a word in the including Collins dictionary, view the book's table of contents, and adjust the font size -- there are eight font sizes in all.
ENGADGET: iRiver Story HD review
One programmer has taken it upon himself to provide a fix for the change to bring the font size back to less-squinting normal.
FORBES: Is Facebook's New Font Size Too Small? Try Facebook Font Fixer
Customers can touch to look up words, highlight passages and customize their reading experience by adjusting the font size and style, and experience lightning-fast page turns by swiping or using the device's contoured physical buttons.
ENGADGET: Target, Walmart list price drop for B&N's Nook Simple Touch with GlowLight to $119

词组短语

专业释义