回答編集履歴
2
追記
answer
CHANGED
|
@@ -18,4 +18,41 @@
|
|
|
18
18
|
outline: solid 10px #CF88EC;
|
|
19
19
|
border: solid 10px #FF9400;
|
|
20
20
|
}
|
|
21
|
+
```
|
|
22
|
+
追記: cerfwebさん回答の疑似要素も使って九重 (コード中のカラーは上が外側、下に行くほど内側の色となるよう並べてあります)
|
|
23
|
+
```CSS
|
|
24
|
+
div {
|
|
25
|
+
width: 600px;
|
|
26
|
+
height: 400px;
|
|
27
|
+
margin: 30px;
|
|
28
|
+
box-shadow: 0 0 0 20px #ffadad; /* 一番外側の色 */
|
|
29
|
+
outline: solid 10px #ffd6a5;
|
|
30
|
+
border: solid 10px #fdffb6;
|
|
31
|
+
position: relative;
|
|
32
|
+
padding: 30px;
|
|
33
|
+
}
|
|
34
|
+
div::after {
|
|
35
|
+
display: block;
|
|
36
|
+
position: absolute;
|
|
37
|
+
width: calc(100% - 60px);
|
|
38
|
+
height: calc(100% - 60px);
|
|
39
|
+
content: "";
|
|
40
|
+
margin: 50px;
|
|
41
|
+
box-shadow: 0 0 0 20px #caffbf;
|
|
42
|
+
outline: solid 10px #9bf6ff;
|
|
43
|
+
border: solid 10px #a0c4ff;
|
|
44
|
+
top: -30px;
|
|
45
|
+
left: -30px;
|
|
46
|
+
}
|
|
47
|
+
div::before {
|
|
48
|
+
display: block;
|
|
49
|
+
position: absolute;
|
|
50
|
+
width: calc(100% - 120px);
|
|
51
|
+
height: calc(100% - 120px);
|
|
52
|
+
content: "";
|
|
53
|
+
margin: 20px;
|
|
54
|
+
box-shadow: 0 0 0 20px #bdb2ff;
|
|
55
|
+
outline: solid 10px #ffc6ff;
|
|
56
|
+
border: solid 10px #eddcd2; /* 一番内側の色 */
|
|
57
|
+
}
|
|
21
58
|
```
|
1
追記
answer
CHANGED
|
@@ -7,4 +7,15 @@
|
|
|
7
7
|
box-shadow: 0 0 0 10px #01FA00;
|
|
8
8
|
border: solid 10px #FF9400;
|
|
9
9
|
}
|
|
10
|
+
```
|
|
11
|
+
追記: outlineも使って三重
|
|
12
|
+
```CSS
|
|
13
|
+
div {
|
|
14
|
+
width: 600px;
|
|
15
|
+
height: 400px;
|
|
16
|
+
margin: 30px;
|
|
17
|
+
box-shadow: 0 0 0 20px #01FA00;
|
|
18
|
+
outline: solid 10px #CF88EC;
|
|
19
|
+
border: solid 10px #FF9400;
|
|
20
|
+
}
|
|
10
21
|
```
|