这是一款CSS3炫酷3D单选表单特效。该特效中，单选按钮表单面板可以进行3D旋转，并且在3D效果下，旋转单选按钮有投射移动的动画效果，非常炫酷。
使用方法
HTML代码
<input id="rotated" type="checkbox" name="rotated" checked><label for="rotated">Rotate the form（旋转表单）</label>
<form>
<h3 class="m-title" data-text="Choose Your Language">Choose Your Language</h3>
<label data-text="JavaScript">
<input type="radio" name="language" value="js"> JavaScript
<span class="dot"></span>
<span class="dot-shadow"></span>
</label>
<label data-text="PHP">
<input type="radio" name="language" value="php"> PHP
<span class="dot"></span>
<span class="dot-shadow"></span>
</label>
<label data-text="Python">
<input type="radio" name="language" value="py"> Python
<span class="dot"></span>
<span class="dot-shadow"></span>
</label>
<label data-text="Swift">
<input type="radio" name="language" value="swift"> Swift
<span class="dot"></span>
<span class="dot-shadow"></span>
</label>
</form>
CSS代码
* {
border: 0;
box-sizing: border-box;
margin: 0;
padding: 0;
}
:root {
--bg: #e3e4e8;
--fg: #17181c;
--formBg: #fff;
--radioBg: #fff;
--radioBgActive: #e3e4e8;
--radioBorder: #c7cad1;
--radioBorderActive: #c7cad1;
--radioSide: #c7cad1;
--primary1: #0b46da;
--primary2: #255ff4;
--primary3: #5583f6;
--primary4: #86a6f9;
--depth: -4.5em;
--ballDiam: 0.75em;
--xAngle: -30deg;
--yAngle: 45deg;
font-size: calc(16px + (24 - 16)*(100vw - 320px)/(1280 - 320));
}
body, h3, input {
color: var(--fg);
font: 1em/1.5 Hind, sans-serif;
}
body, form, form h3, form label {
transform-style: preserve-3d;
}
body {
background: var(--bg);
overflow-x: hidden;
padding-top: 1.5em;
height: 100vh;
text-align: center;
}
h3 {
font-weight: bold;
}
input[type=checkbox] {
margin-right: 0.375em;
}
/* Layer setup */
form {
box-shadow: 0 0 0 0.1em var(--radioBorder) inset;
max-width: 17em;
margin: 4.5em auto 1.5em auto;
padding: 1.5em;
text-align: left;
transform: rotateX(0) rotateY(0) translateZ(calc(var(--depth) / -2));
transition: transform 0.25s linear;
}
form:before, form label:before, form h3:before, .dot, .dot-shadow {
position: absolute;
}
form:before, form input[type=radio], form label:before, form h3:before {
transform: translateZ(var(--depth));
}
form:before {
background: var(--formBg);
content: "";
display: block;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
input[type=checkbox]:checked ~ form {
transform: rotateX(var(--xAngle)) rotateY(var(--yAngle)) translateZ(calc(var(--depth) / -2));
}
/* Radios */
form input[type=radio], form span, form label:before, form h3:before {
transition: all 0.15s linear;
}
form input[type=radio], span {
border-radius: 50%;
}
form input[type=radio] {
background: var(--radioBg);
box-shadow:
0 0 0 var(--radioSide),
0 0 0 0.1em var(--radioBorder) inset,
0 0 0 #0003;
margin-right: 0.5em;
width: 1.5em;
height: 1.5em;
-webkit-appearance: none;
appearance: none;
}
input[type=checkbox]:checked ~ form input[type=radio] {
box-shadow:
-0.25em -0.25em 0 var(--radioSide),
0 0 0 0.1em var(--radioBorder) inset,
-0.25em -0.25em 0.25em #0005;
}
form input[type=radio]:active, form input[type=radio]:focus {
background: var(--radioBgActive);
box-shadow:
0 0 0 var(--radioSide),
0 0 0 0.1em var(--radioBorderActive) inset,
0 0 0 #0003;
}
input[type=checkbox]:checked ~ form input[type=radio]:active, input[type=checkbox]:checked ~ form input[type=radio]:focus {
box-shadow:
-0.25em -0.25em 0 var(--radioSide),
0 0 0 0.1em var(--radioBorderActive) inset,
-0.25em -0.25em 0.25em #0005;
}
form input[type=radio]:focus {
outline: transparent;
}
/* Text shadows */
form h3 {
position: relative;
}
form label {
cursor: pointer;
display: flex;
margin: 0.75em 0;
position: relative;
-webkit-tap-highlight-color: transparent;
}
form label:before, form h3:before {
color: transparent;
content: attr(data-text);
top: 0;
text-shadow: 0 0 0.25em transparent;
transition-delay: 0.15s;
}
form label:before {
left: 2em;
}
input[type=checkbox]:checked ~ form label:before, input[type=checkbox]:checked ~ form h3:before {
text-shadow: 0 0 0.25em #0005;
transition-delay: 0;
}
form h3:before {
top: 0;
left: 0;
}
/* Dots */
.dot, .dot-shadow {
display: block;
pointer-events: none;
top: 0.375em;
left: 0.375em;
width: var(--ballDiam);
height: var(--ballDiam);
}
.dot {
background: var(--primary2);
box-shadow:
-0.2em -0.2em 0.4em var(--primary1) inset,
0 0.2em 0.4em var(--primary3) inset;
transform: translateZ(var(--depth)) rotateY(0) rotateX(0) scale(0);
}
form input[type=radio]:active ~ .dot,
form input[type=radio]:focus ~ .dot {
background: var(--primary3);
box-shadow:
-0.2em -0.2em 0.4em var(--primary2) inset,
0 0.2em 0.4em var(--primary4) inset;
}
form input[type=radio]:checked ~ .dot {
transform: translateZ(calc(var(--ballDiam) / -2)) rotateY(0) rotateX(0) scale(1);
}
input[type=checkbox]:checked ~ form input[type=radio] ~ .dot {
transform: translateZ(var(--depth)) rotateY(calc(var(--yAngle) * -1)) rotateX(calc(var(--xAngle) * -1)) scale(0);
}
input[type=checkbox]:checked ~ form input[type=radio]:checked ~ .dot {
transform: translateZ(calc(var(--ballDiam) / -2)) rotateY(calc(var(--yAngle) * -1)) rotateX(calc(var(--xAngle) * -1)) scale(1);
}
/* Dot shadows */
.dot-shadow {
background: radial-gradient(100% 100%,#000,#0000 50%);
opacity: 0.9;
transform: translateZ(var(--depth)) scale(0);
}
input[type=radio]:checked ~ .dot-shadow {
opacity: 0.4;
transform: translateZ(var(--depth)) scale(1);
}
/* Dark mode */
@media (prefers-color-scheme: dark) {
:root {
--bg: #17181c;
--fg: #e3e4e8;
--formBg: #2e3138;
--radioBg: #454954;
--radioBgActive: #5c6270;
--radioBorder: #454954;
--radioBorderActive: #5c6270;
--radioSide: #17181c;
--primary1: #255ff4;
--primary2: #5583f6;
--primary3: #86a6f9;
--primary4: #b6cafb;
}
}
