如何直接扩展 SCSS 父选择器?
How do I directly extend an SCSS parent selector?
我有以下代码:
article.featured {
h4 {
margin-bottom: 20px
}
:first-child {
height: 100%;
padding-top: 0;
padding-left: 0;
background-position: center;
background-repeat: no-repeat;
background-size: cover;
.img {
@extend &;
}
}
:last-child {
padding-top: 0;
padding-right: 0
}
}
这是行 13
:
@extend &;
问题是,当我尝试编译此样式表时,出现以下错误:
Parent selectors aren't allowed here.
╷
10│ @extend &;
│ ^
╵
stdin 13:19 root stylesheet on line 10 at column 19
如何解决此错误并使用父 (&
) 元素的属性扩展 .img
元素?
我发现当我将 .img
选择器移动到 :first-child
选择器旁边并将选择器更改为 :first-selector, :first-selector .img
.
时它起作用了
这是工作代码(注意:行3
):
article.featured {
h4 { margin-bottom: 20px }
:first-child, :first-child .img {
height: 100%;
padding-top: 0;
padding-left: 0;
background-position: center;
background-repeat: no-repeat;
background-size: cover;
}
:last-child {
padding-top: 0;
padding-right: 0
}
}
编译为:
article.featured h4 {
margin-bottom: 20px;
}
article.featured :first-child, article.featured :first-child .img {
height: 100%;
padding-top: 0;
padding-left: 0;
background-position: center;
background-repeat: no-repeat;
background-size: cover;
}
article.featured :last-child {
padding-top: 0;
padding-right: 0;
}
我有以下代码:
article.featured {
h4 {
margin-bottom: 20px
}
:first-child {
height: 100%;
padding-top: 0;
padding-left: 0;
background-position: center;
background-repeat: no-repeat;
background-size: cover;
.img {
@extend &;
}
}
:last-child {
padding-top: 0;
padding-right: 0
}
}
这是行 13
:
@extend &;
问题是,当我尝试编译此样式表时,出现以下错误:
Parent selectors aren't allowed here.
╷
10│ @extend &;
│ ^
╵
stdin 13:19 root stylesheet on line 10 at column 19
如何解决此错误并使用父 (&
) 元素的属性扩展 .img
元素?
我发现当我将 .img
选择器移动到 :first-child
选择器旁边并将选择器更改为 :first-selector, :first-selector .img
.
这是工作代码(注意:行3
):
article.featured {
h4 { margin-bottom: 20px }
:first-child, :first-child .img {
height: 100%;
padding-top: 0;
padding-left: 0;
background-position: center;
background-repeat: no-repeat;
background-size: cover;
}
:last-child {
padding-top: 0;
padding-right: 0
}
}
编译为:
article.featured h4 {
margin-bottom: 20px;
}
article.featured :first-child, article.featured :first-child .img {
height: 100%;
padding-top: 0;
padding-left: 0;
background-position: center;
background-repeat: no-repeat;
background-size: cover;
}
article.featured :last-child {
padding-top: 0;
padding-right: 0;
}