July 2016
Intermediate to advanced
384 pages
10h 11m
Japanese
Content preview from CSSシークレット ―47のテクニックでCSSを自在に操る
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もちろん、コードはさらに複雑化しますが両者を組み合わせることもで
きます。例えば項目数が 2 個から 6 個までのリストを対象にするには、以
下のようにします。
▶ PLAY!
play.csssecrets.io/styling‐sibling‐count
li:first‐child:nth‐last‐child(n+2):nth‐last‐child(‐n+6),
li:first‐child:nth‐last‐child(n+2):nth‐last‐child(‐n+6)~
li{
/*項目数が2つ以上6つ以下のリストで、各項目に適用される
スタイル*/
}
関連仕様
Selectors
w3.org/TR/selectors
305
シークレット38：兄弟要素の個数にもとづくスタイル指定
図7.11
項目数が異なるリストに対して、それ
ぞ れ li:first‐child:nth‐last‐
child(n+4),
li:first‐child:nth‐last‐
child(n+4)~liを適用した場合に
選択される要素
1 2 3
1
✓
2
✓
3
✓
4
✓
1
✓
2
✓
3
✓
4
✓
5
✓
6
✓
7
✓
8
✓
図7.12
項目数が異なるリストに対して、それ
ぞ れ li:first‐child:nth‐last‐
child(‐n+4),
li:first‐child:nth‐last‐
child(‐n+4)~l
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.