CSS转换过渡问题

问题描述 投票:2回答:1

我正在尝试仅使用HTML和CSS实现翻页卡菜单。几乎完成了所有操作,只是卡的背面在接收第一个悬停状态时需要一些时间才能显示。这样做只是在90度进行平滑过渡,然后立即显示最终结果(在最后90度不再进行平滑过渡)。

第一次悬停后,一切正常。

有什么建议吗?

编辑:下面的代码段已被编辑以适合正确的答案。

@import url('https://fonts.googleapis.com/css?family=Open+Sans:400,700&display=swap');
.main{
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-family: 'Open Sans', sans-serif;
    background-color: #000;
}
.header{
    color:white;
    font-size: 2vh;
    margin-bottom: 2vh;
}
.header a{
    text-decoration: none;
    color: white;
    font-weight: bold;
}
.card{
    background-color: transparent;
    width: 30vh;
    height: 50vh;
    perspective: 1000px;
    perspective-origin: center;
    margin-right: 0.5vh;
    
    

}
.card > .card-container{
    position: relative;
    width: 100%;
    height: 100%;
    transition: 1s transform ease; 
    transform-style: preserve-3d;
    background-color: transparent;
}
.card:hover > .card-container{
    transform: rotateY(180deg);
}
.card-container > .front,.card-container > .back {
    width: 100%;
    height: 100%;
    position: absolute;  
    top: 0;
    left: 0;
}
.card-container > .front{

    background-image: linear-gradient(to bottom right,red, yellow);
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 0.5vh;
    color: white;
    font-size: 3vh;
    cursor: pointer;
    backface-visibility: hidden;
}
.card-container > .back{
    
    background-color: transparent;
    color: white;
    font-size: 3vh;
    transform: rotateY(180deg);
    cursor: pointer;
   
}


.back > ul{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    list-style: none;
    padding: 0;
    margin: 0;
    width: 100%;
    height: 100%;
    perspective: 1000px;
    perspective-origin: center ;

}

.back > ul > li{
    
    text-align: center;
    height: calc(100% - (0.2vh * 4) /5);
    width: 100%;
    transition: 1s transform ease;
    transform-style: preserve-3d;
    
}
.back > ul > li:not(:last-child){
    
    margin-bottom: 0.2vh;
}

.back > ul > li > .child-front, .back > ul > li > .child-back {
    
    backface-visibility: hidden;
    width: 100%;
    height: 100%;
    position: absolute;
    top:0;
    left: 0;
    border-radius: 0.5vh;
}
.back > ul > li > .child-front{
    background-image: linear-gradient(to bottom left,red, orange);
    display: flex;
    justify-content: center;
    align-items: center;
}
.back > ul > li > .child-back{
    background-color: orange;
    transform: rotateX(180deg);
    display: flex;
    justify-content: center;
    align-items: center;
}

.back > ul > li:hover{
    
    transform: rotateX(180deg);
}


.child-back span, .child-front span{
    color: white;
    display: block;
}
.child-back span{
    font-weight: bold;
}
<div class="main">
            <div class="header">
                Find me on <a href="https://github.com/ican17/flipmenu">Github</a>
            </div>
            <div class="card">
                    <div class="card-container">
                            <div class="front">
                                <span>Hover here</span>
                            </div>
                            <div class="back">
                                <ul class="menu">
                                    <li class="child">
                                        <div class="child-front"><span>Hover here</span></div>
                                        <div class="child-back"><span>ITEM1</span></div>
                                    </li>
                                    <li class="child">
                                        <div class="child-front"><span>Hover here</span></div>
                                        <div class="child-back"><span>ITEM2</span></div>
                                    </li>
                                    <li class="child">
                                        <div class="child-front"><span>Hover here</span></div>
                                        <div class="child-back"><span>ITEM3</span></div>
                                    </li>
                                    <li class="child">
                                        <div class="child-front"><span>Hover here</span></div>
                                        <div class="child-back"><span>ITEM4</span></div>
                                    </li>
                                    <li class="child">
                                        <div class="child-front"><span>Hover here</span></div>
                                        <div class="child-back"><span>ITEM5</span></div>
                                    </li>
                                </ul>
                            </div>
                    </div>
                    
            </div>
    </div>
css transform transition
1个回答
2
投票

删除backface-visibility: hidden;

.card-container > .front,.card-container > .back {
     width: 100%;
     height: 100%;
     position: absolute;
     top: 0;
     left: 0;
}

它实际上旋转180deg,但是由于backface-visibility,您看不到整个变换。旋转完成后向您显示。

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