Let's begin with a kind of warm-up sheet which we can anchor in these little drawings I've made.
让我们先来热一下身，把薄片固定在我画的这些小图里。
2
Specifying the following-sibling axis ensures that the style sheet processor checks the element that follows the named anchor.
指定 following-sibling 轴可确保样式表处理器检查紧随命名锚点之后的元素。
3
You attach this single sheet by drawing it across the iPad’s face as though you’re making a bed. With a satisfying clicking sound, hidden magnets anchor the thing solidly to the iPad’s face.