a[class='outlink' o_link^="http:"]
Selects an <a> element whose class='outlink' o_link attribute value begins with http:.
For example:
p[title^="para"]{background: green;}
Will match the following:
<ptitle="paragraph"> This paragraph should have a green background. </p>
30.下列 CSS 語法,哪一個會正確超連結至. pdf 檔案? (A) a:..-阿摩線上測驗