我有一个CSS我尝试使用许多结构(例如
)转移到SASS.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active,
.btn-primary.active,
.open .dropdown-toggle.btn-primary {
...
}
有了这个:
.btn-primary {
...
&:hover,
&:focus,
&:active,
&.active,
.open .dropdown-toggle#{&} {
我显然得到了:
.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active,
.btn-primary.active,
.btn-primary .open .dropdown-toggle.btn-primary {
...
}
但我似乎不允许使用@ at-root:
.btn-primary {
...
&:hover,
&:focus,
&:active,
&.active,
@at-root .open .dropdown-toggle#{&} {
因为SASS需要逗号后面的选择器并获得@ ...
答案 0 :(得分:3)
@at-root
指令不能以这种方式使用。它旨在应用完整选择器,而不是列表中的单个选择器。由于您的选择器都是类,您可以将父选择器重新定位到开头,而不是尝试将其追加到最后:
.btn-primary {
&:hover,
&:focus,
&:active,
&.active,
.open &.dropdown-toggle {
color: red;
}
}
输出:
.btn-primary:hover, .btn-primary:focus, .btn-primary:active, .btn-primary.active, .open .btn-primary.dropdown-toggle {
color: red;
}
如果绝对必须在最后(例如,您使用元素或伪选择器),最简单的解决方案是使用extends:
%common {
color: red;
}
.btn-primary {
&:hover,
&:focus,
&:active,
&.active {
@extend %common;
}
@at-root .open .dropdown-toggle#{&} {
@extend %common;
}
}
输出:
.btn-primary:hover, .btn-primary:focus, .btn-primary:active, .btn-primary.active, .open .dropdown-toggle.btn-primary {
color: red;
}