在 CSS 翻转中,TransformZ 元素不在顶部
In CSS flip,TransformZ elements not on top
我有以下片段来说明这个问题。
根据我所阅读的所有内容,使用 transformZ 定位的元素应该在顶部 'closer.' 我无法使用 z-index 定位 active/flipped 卡片 'on top' 因为闪烁发生在过渡过程中。然而,这些元素是按照浏览器的默认顺序定位的,这意味着后面的元素在最上面。 Transform-style 和 perspective 都应用于父级。
为什么靠近的元素不在顶部?
.card {
position: relative;
width: 33.333%; height: 12rem;
float: left;
transform-style: preserve-3d;
perspective: 30rem;
}
.front, .back {
position: absolute;
width: 100%; height: 100%;
transition: transform 1s;
backface-visibility:hidden;
}
.front {
background-color: #66ccff;
}
.back {
background-color: #dd8800;
transform: rotateY(180deg);
}
.card:hover .front{ transform: rotateY(180deg);}
.card:hover .back { transform: rotateY(360deg) translateZ(5em);}
.card2 {
position: relative;
width: 33.333%; height: 12rem;
perspective: 30rem;
float: left;
}
.front2, .back2 {
position: absolute;
width: 100%; height: 100%;
transition: transform 1s;
backface-visibility:hidden;
}
.front2 {
background-color: #66ccff;
}
.back2 {
background-color: #dd8800;
transform: rotateY(180deg);
z-index: 99;
}
.card2:hover .front2 { transform: rotateY(180deg);}
.card2:hover .back2 { transform: rotateY(360deg) translateZ(5em);}
.card3 {
position: relative;
width: 33.333%; height: 12rem;
perspective: 30rem;
float: left;
}
.front3, .back3 {
position: absolute;
width: 100%; height: 100%;
transition: transform 1s;
backface-visibility:hidden;
}
.front3 {
background-color: #66ccff;
}
.back3 {
background-color: #dd8800;
transform: rotateY(180deg);
z-index: 99;
}
.card3:hover .front3 { transform: rotateY(180deg);}
.card3:hover .back3 { transform: rotateY(360deg) translateZ(5em);}
<div class="card">
<div class="front">
<span>Front</span>
</div>
<div class="back">
<span>Back</span>
</div>
</div>
<div class="card2">
<div class="front2">
<span>Front</span>
</div>
<div class="back2">
<span>Back</span>
</div>
</div>
<div class="card3">
<div class="front3">
<span>Front</span>
</div>
<div class="back3">
<span>Back</span>
</div>
</div>
因为使用了persepctive
创建了层叠上下文
Using this property with a value different than 0 and none creates a new stacking context. Also, in that case, the object will act as a containing block for position: fixed elements that it contains.ref
所以你说的都是真的,但它发生在卡片元素内部,然后根据树顺序对卡片元素进行定位。
一个简单的解决方法是调整 z-index
卡片元素,考虑到一些延迟以避免不良影响。
.card {
position: relative;
width: 33.333%; height: 12rem;
float: left;
transform-style: preserve-3d;
perspective: 30rem;
z-index:0;
transition:z-index 0s .5s;
}
.front, .back {
position: absolute;
width: 100%; height: 100%;
transition: transform 1s;
backface-visibility:hidden;
}
.front {
background-color: #66ccff;
}
.back {
background-color: #dd8800;
transform: rotateY(180deg);
}
.card:hover .front{ transform: rotateY(180deg);}
.card:hover .back { transform: rotateY(360deg) translateZ(5em);}
.card:hover {
z-index:1;
}
<div class="card">
<div class="front">
<span>Front</span>
</div>
<div class="back">
<span>Back</span>
</div>
</div>
<div class="card">
<div class="front">
<span>Front</span>
</div>
<div class="back">
<span>Back</span>
</div>
</div>
<div class="card">
<div class="front">
<span>Front</span>
</div>
<div class="back">
<span>Back</span>
</div>
</div
我有以下片段来说明这个问题。
根据我所阅读的所有内容,使用 transformZ 定位的元素应该在顶部 'closer.' 我无法使用 z-index 定位 active/flipped 卡片 'on top' 因为闪烁发生在过渡过程中。然而,这些元素是按照浏览器的默认顺序定位的,这意味着后面的元素在最上面。 Transform-style 和 perspective 都应用于父级。
为什么靠近的元素不在顶部?
.card {
position: relative;
width: 33.333%; height: 12rem;
float: left;
transform-style: preserve-3d;
perspective: 30rem;
}
.front, .back {
position: absolute;
width: 100%; height: 100%;
transition: transform 1s;
backface-visibility:hidden;
}
.front {
background-color: #66ccff;
}
.back {
background-color: #dd8800;
transform: rotateY(180deg);
}
.card:hover .front{ transform: rotateY(180deg);}
.card:hover .back { transform: rotateY(360deg) translateZ(5em);}
.card2 {
position: relative;
width: 33.333%; height: 12rem;
perspective: 30rem;
float: left;
}
.front2, .back2 {
position: absolute;
width: 100%; height: 100%;
transition: transform 1s;
backface-visibility:hidden;
}
.front2 {
background-color: #66ccff;
}
.back2 {
background-color: #dd8800;
transform: rotateY(180deg);
z-index: 99;
}
.card2:hover .front2 { transform: rotateY(180deg);}
.card2:hover .back2 { transform: rotateY(360deg) translateZ(5em);}
.card3 {
position: relative;
width: 33.333%; height: 12rem;
perspective: 30rem;
float: left;
}
.front3, .back3 {
position: absolute;
width: 100%; height: 100%;
transition: transform 1s;
backface-visibility:hidden;
}
.front3 {
background-color: #66ccff;
}
.back3 {
background-color: #dd8800;
transform: rotateY(180deg);
z-index: 99;
}
.card3:hover .front3 { transform: rotateY(180deg);}
.card3:hover .back3 { transform: rotateY(360deg) translateZ(5em);}
<div class="card">
<div class="front">
<span>Front</span>
</div>
<div class="back">
<span>Back</span>
</div>
</div>
<div class="card2">
<div class="front2">
<span>Front</span>
</div>
<div class="back2">
<span>Back</span>
</div>
</div>
<div class="card3">
<div class="front3">
<span>Front</span>
</div>
<div class="back3">
<span>Back</span>
</div>
</div>
因为使用了persepctive
创建了层叠上下文
Using this property with a value different than 0 and none creates a new stacking context. Also, in that case, the object will act as a containing block for position: fixed elements that it contains.ref
所以你说的都是真的,但它发生在卡片元素内部,然后根据树顺序对卡片元素进行定位。
一个简单的解决方法是调整 z-index
卡片元素,考虑到一些延迟以避免不良影响。
.card {
position: relative;
width: 33.333%; height: 12rem;
float: left;
transform-style: preserve-3d;
perspective: 30rem;
z-index:0;
transition:z-index 0s .5s;
}
.front, .back {
position: absolute;
width: 100%; height: 100%;
transition: transform 1s;
backface-visibility:hidden;
}
.front {
background-color: #66ccff;
}
.back {
background-color: #dd8800;
transform: rotateY(180deg);
}
.card:hover .front{ transform: rotateY(180deg);}
.card:hover .back { transform: rotateY(360deg) translateZ(5em);}
.card:hover {
z-index:1;
}
<div class="card">
<div class="front">
<span>Front</span>
</div>
<div class="back">
<span>Back</span>
</div>
</div>
<div class="card">
<div class="front">
<span>Front</span>
</div>
<div class="back">
<span>Back</span>
</div>
</div>
<div class="card">
<div class="front">
<span>Front</span>
</div>
<div class="back">
<span>Back</span>
</div>
</div