更新时间:2023-02-06 08:23:53
您可以考虑使用CSS变量.指定2个背景层,以后可以更改.您可以轻松缩放到任意数量的背景:
You can consider CSS variables. Specify 2 background layer that you can change later. You can easily scale to any number of background:
.container > div {
background:
/*we make the default value a transparent image*/
var(--im1,linear-gradient(transparent,transparent)),
var(--im2,linear-gradient(transparent,transparent));
height:200px;
width:200px;
display:inline-block;
}
.background1 {
--im2: url(https://picsum.photos/200/300?image=0);
}
.background2 {
--im2: url(https://picsum.photos/200/300?image=1069);
}
.backgroundFilter {
--im1: linear-gradient(to right,transparent,green);;
}
<div class="container">
<div class="background1">...</div>
<div class="background1 backgroundFilter">...</div>
<div class="background2">...</div>
<div class="background2 backgroundFilter">...</div>
</div>
您还可以考虑将新背景用作伪元素,但是由于我们只有2个伪元素,因此您只能使用3个背景:
You can also consider a pseudo element for the new background but you are limited with only 3 backgrounds since we have only 2 pseudo elements:
.container > div {
height:200px;
width:200px;
display:inline-block;
position:relative;
z-index:0;
}
.background1 {
background: url(https://picsum.photos/200/300?image=0);
}
.background2 {
background: url(https://picsum.photos/200/300?image=1069);
}
.backgroundFilter::before {
content:'';
position:absolute;
z-index:-1;
top:0;
left:0;
right:0;
bottom:0;
background: linear-gradient(to right,transparent,green);;
}
<div class="container">
<div class="background1">...</div>
<div class="background1 backgroundFilter">...</div>
<div class="background2">...</div>
<div class="background2 backgroundFilter">...</div>
</div>