问题描述
在鼠标悬停时,我也想对:before内容进行更改,我在官方文档中找不到答案,我想知道这样做是否可行。 这是我要转换为样式化组件语法的css选择器:
.button:hover::before{}
这是样式化的组件:
import styled from '@emotion/styled'
export const Button =styled.button(props=>{
return`
padding: .75rem 2rem ;
color: #fff;
background-color: transparent;
border: 1px solid #000;
position: relative;
z-index: 1;
transition: all .5s cubic-bezier(0.785,0.135,0.15,0.86);
cursor: pointer;
width: ${props.width ? props.width:'fit-content'};
margin-top: ${props.marginTop ? props.marginTop :0}rem;
&:before{
content: '';
position: absolute;
z-index: -1;
height: 100%;
width: 100%;
top: 0;
left: 0;
${props.collection?"background-color: #fff;":"background-color: var(--colorGrey);"}
transition: all .5s cubic-bezier(0.785,0.86);
transform-origin: left center;
//I want to change style on hover
}
&:hover{
color:var(--colorGrey);
}
`})
解决方法
只需将:before
伪元素嵌套在:hover
伪类中。
另外,考虑使用模板文字,而不是使用支持属性的函数。
import styled from '@emotion/styled';
export const Button = styled.button`
padding: 0.75rem 2rem;
color: #fff;
background-color: transparent;
border: 1px solid #000;
position: relative;
z-index: 1;
transition: all 0.5s cubic-bezier(0.785,0.135,0.15,0.86);
cursor: pointer;
width: ${(props) => (props.width ? props.width : 'fit-content')};
margin-top: ${(props) => (props.marginTop ? props.marginTop : 0)}rem;
&:before {
content: '';
position: absolute;
z-index: -1;
height: 100%;
width: 100%;
top: 0;
left: 0;
${(props) => (props.collection ? 'background-color: #fff;' : 'background-color: var(--colorGrey);')}
transition: all .5s cubic-bezier(0.785,0.86);
transform-origin: left center;
}
&:hover {
color: var(--colorGrey);
&:before {
content: 'Hovered';
}
}
`;