想要在旋转时显示元素的厚度

want to show the thickness of an element while it rotate(想要在旋转时显示元素的厚度)

问题描述

我通过 CSS 将一枚硬币沿 Y 轴旋转 90 度.有没有办法让我可以在硬币旋转后显示硬币的厚度，我想我可以在硬币沿 Y 轴旋转后缩放 Y，但这似乎不起作用.如果可能的话，请提出一些方法来做同样的事情.link_on_js fiddle 同样.请使用 webkit 浏览器打开链接.

I am rotating a coin along Y axis by 90deg through CSS. Is there a way so that I can show the thickness of the coin after it have rotated, I thought I can scaleY after the coin have rotated along Y axis but this doesn't seem to work. Please suggest some way to do the same if it is possible. link_on_js fiddle for the same. Please use webkit browsers to open the link.

css

.coin {
    display: block;
    background: url("url-to-image-of-coin.jpg");
    background-size: 100% 100%;
    width: 100px;
    height: 100px;
    margin: auto;
    border-radius: 100%;
    transition: all 500ms linear;
}

.flip {
    transform: rotateY(180deg);
}

html

<div class="coin"></div>

jquery

$('.coin').click(function() {
    $(this).toggleClass('flip');
});

小提琴

http://jsfiddle.net/7EtLu/22/

推荐答案

您可以使用伪元素来提供类似的效果.这是一个示例:http://jsfiddle.net/joshnh/y7rQL/

You can use pseudo-elements to give an effect that is similar. Here is an example: http://jsfiddle.net/joshnh/y7rQL/

<div class="coin"></div>

body {
    transform: perspective(500px);
    transform-style: preserve-3d;
}
.coin {
    background-image: url("http://www.coolemails4u.com/wp-content/uploads/2010/10/indian_rupee.png");
    background-size: 100% 100%;
    border-radius: 100%;
    height: 100px;
    margin: 50px auto;
    position: relative;
    transition: .5s linear;
    transform-style: preserve-3d;
    width: 100px;
}
.coin:after {
    background-color: #262626;
    background-image: -webkit-linear-gradient(hsla(0,0%,100%,.25), hsla(0,0%,0%,.25));
    bottom: 0;
    content: '';
    left: 45px;
    position: absolute;
    top: 0;
    transform: rotateY(-90deg);
    transform-origin: 100% 50%;
    width: 5px;
    z-index: -10;
}
.coin:before {
    background-color: #262626;
    background-image: -webkit-linear-gradient(hsla(0,0%,100%,.25), hsla(0,0%,0%,.25));
    border-radius: 100%;
    content: '';
    height: 100px;
    left: 0;
    position: absolute;
    top: 0;
    transform: translateZ(-5px);
    width: 100px;
}
.coin:hover {
    transform: rotateY(90deg);
}​

另外，这里有一个旋转 180 度的版本(虽然不是很好):http://jsfiddle.net/joshnh/Bz22S/

Also, here is a version that spins 180 degrees (it isn't quite as nice though): http://jsfiddle.net/joshnh/Bz22S/

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