html - 使用单选按钮激活的纯 CSS 动画移动菜单

Question

我有一个移动菜单，单击时应该形成 X，但它不会响应并且卡在其形状上。我不知道它为什么这样做，但据我分析，这段代码应该使菜单在单击时形成 X 动画。我附上代码供引用。

这些是 CSS 和 HTML

/* Checkbox Hack */
input[type=checkbox] {
  display: block;
  width: 40px;
  height: 32px;
  position: absolute;
  top: -7px;
  left: -5px;
  cursor: pointer;
  opacity: 0;
  z-index: 2;
  -webkit-touch-callout: none;
}

/* Default State */
.divko {
  background: green;
  width: 400px;
  height: 100px;
  line-height: 100px;
  color: white;
  text-align: center;
}

/* Toggled State */
.myspan {
  display: block;
  width: 33px;
  height: 4px;
  margin-bottom: 5px;
  position: relative;
  background: #cdcdcd;
  border-radius: 3px;
  z-index: 1;
  transform-origin: 4px 0px;
  transition: transform 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0), background 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0), opacity 0.55s ease;
}

.myspan:first-child {
  transform-origin: 0% 0%;
}

.myspan:nth-last-child(2) {
  transform-origin: 0% 100%;
}

input[type=checkbox]:checked ~ .myspan {
  opacity: 1;
  transform: rotate(45deg) translate(-2px, -1px);
  background: #232323;
}

input[type=checkbox]:checked ~ .divko {
  background: red;
}

<div for="toggle-1"> <span class="myspan"></span>
  <span class="myspan"></span>
  <span class="myspan"></span></div>
<input type="checkbox" id="toggle-1">
<div class="divko">I'm controlled by toggle. No JavaScript!</div>

这是小玩意儿 http://dabblet.com/gist/5b4667ecc7255c228cd488c080140d95

Answer 1

将复选框放在我赋予 .menu 类的 div 之前，并将规则应用于 input[type=checkbox]:checked ~ .menu > .myspan.

/* Checkbox Hack */
input[type=checkbox] {
  display: block;
  width: 40px;
  height: 32px;
  position: absolute;
  top: -7px;
  left: -5px;
  cursor: pointer;
  opacity: 0;
  z-index: 2;
  -webkit-touch-callout: none;
}

/* Default State */
.divko {
  background: green;
  width: 400px;
  height: 100px;
  line-height: 100px;
  color: white;
  text-align: center;
}

/* Toggled State */
.myspan {
  display: block;
  width: 33px;
  height: 4px;
  margin-bottom: 5px;
  position: relative;
  background: #cdcdcd;
  border-radius: 3px;
  z-index: 1;
  transform-origin: 4px 2px;
  transition: transform 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0), background 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0), opacity 0.55s ease;
}

input[type=checkbox]:checked ~ .menu > .myspan {
  opacity: 1;
  background: #232323;
}

input[type=checkbox]:checked ~ .menu > .myspan:first-child {
  transform: rotate(45deg);
}

input[type=checkbox]:checked ~ .menu > .myspan:nth-child(2) {
  transform: translate(-100px);
}

input[type=checkbox]:checked ~ .menu > .myspan:last-child {
  transform: rotate(-45deg);
}

input[type=checkbox]:checked ~ .divko {
  background: red;
}

<input type="checkbox" id="toggle-1">

<div for="toggle-1" class="menu">
  <span class="myspan"></span>
  <span class="myspan"></span>
  <span class="myspan"></span>
</div>

<div class="divko">I'm controlled by toggle. No JavaScript!</div>