边框
<template>
<div class='container'>
<div class='draw drawDiv'>
单向渐变
</div>
<div class='draw meet drawDiv'>
双向渐变
</div>
<div class='center drawDiv' >
中心渐变
</div>
</div>
</template>
<script>
export default {
}
</script>
<style>
.container{
display:flex;
margin:0 auto;
background-color:black;
justify-content: center;
}
.drawDiv {
background: none;
border: 0;
box-sizing: border-box;
margin: 1em;
padding: 1em 1em;
box-shadow: inset 0 0 0 2px #f45e61;
color: #f45e61;
font-size: 15px;
font-weight: 700;
position: relative;
vertical-align: middle;
text-align: center;
width:100px;
height:50px;
line-height: 20px;
}
.drawDiv::before, div::after {
box-sizing: inherit;
content: '';
position: absolute;
width: 100%;
height: 100%;
}
.drawDiv {
transition: color 0.25s;
}
.drawDiv::before, div::after {
border: 2px solid transparent;
width: 0;
height: 0;
}
/* 单向渐变 */
.draw::before {
top: 0;
left: 0;
}
.draw::after {
bottom: 0;
right: 0;
}
.draw:hover {
color: #60daaa;
}
.draw:hover::before, .draw:hover::after {
width: 100%;
height: 100%;
}
.draw:hover::before {
border-top-color: #60daaa;
border-right-color: #60daaa;
transition: width 0.25s ease-out, height 0.25s ease-out 0.25s;
}
.draw:hover::after {
border-bottom-color: #60daaa;
border-left-color: #60daaa;
transition: border-color 0s ease-out 0.5s, width 0.25s ease-out 0.5s, height 0.25s ease-out 0.75s;
}
/* 双向渐变 */
.meet:hover {
color: #fbca67;
}
.meet::after {
top: 0;
left: 0;
}
.meet:hover::before {
border-top-color: #fbca67;
border-right-color: #fbca67;
}
.meet:hover::after {
border-bottom-color: #fbca67;
border-left-color: #fbca67;
transition: height 0.25s ease-out, width 0.25s ease-out 0.25s;
}
/* 中心渐变 */
.center:hover {
color: #6477b9;
}
.center::before, .center::after {
top: 0;
left: 0;
height: 100%;
width: 100%;
-webkit-transform-origin: center;
transform-origin: center;
}
.center::before {
border-top: 2px solid #6477b9;
border-bottom: 2px solid #6477b9;
-webkit-transform: scale3d(0, 1, 1);
transform: scale3d(0, 1, 1);
}
.center::after {
border-left: 2px solid #6477b9;
border-right: 2px solid #6477b9;
-webkit-transform: scale3d(1, 0, 1);
transform: scale3d(1, 0, 1);
}
.center:hover::before, .center:hover::after {
-webkit-transform: scale3d(1, 1, 1);
transform: scale3d(1, 1, 1);
transition: transform 0.5s, -webkit-transform 0.5s;
}
</style>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
编辑 (opens new window)
上次更新: 2021/07/01, 20:33:02