javascript - 更改 CSS 以使用 jQuery 切换

Question

编织: http://kodeweave.sourceforge.net/editor/#e3d0eadc38078efe27c7785d6e4a6e1a

我的网站上有一个 float 操作按钮( Material 设计风格)。目前它由 :hover 属性和纯 CSS 触发。我想将其更改为在点击时打开，并计划使用 jQuery 的切换功能。

我正在尝试从 mydivision.net 复制菜单(右下角)

$(document).ready(function() {
  $("span#fab").click(function () {
    $(this).toggleClass("active");
  });
});

.fab {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 10;
}

.fab-button {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.28);
  border-radius: 50%;
  display: block;
  width: 56px;
  height: 56px;
  margin: 20px auto 0;
  position: relative;
  -webkit-transition: all 0.2s ease-out;
  transition: all 0.2s ease-out;
  text-align: center;
}

.fab-button:active,
.fab-button:focus,
.fab-button:hover {
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.56);
}

.fab-button:not(:last-child) {
  width: 42px;
  height: 42px;
  margin: 10px auto 0;
  opacity: 0;
  -webkit-transform: translateY(50px) scale(0.2);
  transform: translateY(50px) scale(0.2);
}

.fab:hover .fab-button:not(:last-child) {
  opacity: 1;
  -webkit-transform: none;
  transform: none;
  margin: 15px auto 0;
}

.fab-button i {
  color: #fff;
  font-size: 21px;
  text-align: center;
  line-height: 42px;
}

.fab-button:nth-last-child(1) i {
  line-height: 56px;
}

.fab-button:nth-last-child(1) {
  -webkit-transition-delay: 25ms;
  transition-delay: 25ms;
  background-color: #ff6d10;
  cursor: pointer;
}

.fab-button:not(:last-child):nth-last-child(2) {
  -webkit-transition-delay: 50ms;
  transition-delay: 50ms;
  background-color: #78c831;
}

.fab-button:not(:last-child):nth-last-child(3) {
  -webkit-transition-delay: 75ms;
  transition-delay: 75ms;
  background-color: #3f73fc;
}

.fab-button:not(:last-child):nth-last-child(4) {
  -webkit-transition-delay: 100ms;
  transition-delay: 100ms;
  background-color: #6d5593;
}

.fab-button:not(:last-child):nth-last-child(5) {
  -webkit-transition-delay: 125ms;
  transition-delay: 125ms;
  background-color: #f8ba24;
}

.fab-button:not(:last-child):nth-last-child(6) {
  -webkit-transition-delay: 150ms;
  transition-delay: 150ms;
  background-color: #1fc36a;
}

.fab-button:not(:last-child):nth-last-child(7) {
  -webkit-transition-delay: 175ms;
  transition-delay: 175ms;
  background-color: #242424;
}

.fab .fab-button:nth-last-child(1) i {
  -webkit-transition: all 0.2s ease;
  transition: all 0.2s ease;
}

.fab:hover .fab-button:nth-last-child(1) i {
  transform: rotate(-180deg);
}

[tooltip]:before {
  position: absolute;
  bottom: 22%;
  right: 100%;
  border-radius: 3px;
  background-color: #242424;
  color: #fff;
  content: attr(tooltip);
  font-size: 12px;
  line-height: 1;
  padding: 5px;
  margin-right: 10px;
  white-space: nowrap;
  visibility: hidden;
  opacity: 0;
}

[tooltip]:hover:before,
[tooltip]:hover:after {
  background-color: #000;
}

.fab:hover [tooltip]:before,
.fab:hover [tooltip]:after {
  visibility: visible;
  opacity: 1;
}

<link href="https://necolas.github.io/normalize.css/4.1.1/normalize.css" rel="stylesheet"/>
<link href="http://fontawesome.io/assets/font-awesome/css/font-awesome.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<nav class="fab">
  <a class="fab-button" href="#" tooltip="blaah"><i class="fa fa-angle-double-up"></i></a>
  <a class="fab-button" href="#" tooltip="blaah"><i class="fa fa-shopping-cart"></i></a>
  <a class="fab-button" href="#" tooltip="blaah"><i class="fa fa-users"></i></a>
  <a class="fab-button" href="#" tooltip="blaah"><i class="fa fa-microphone"></i></a>
  <a class="fab-button" href="#" tooltip="blaah"><i class="fa fa-gavel"></i></a>
  <a class="fab-button" href="#" tooltip="Forum"><i class="fa fa-comments"></i></a>
  <span class="fab-button" id="fab"><i class="fa fa-bars"></i></span>
</nav>

我想我可以使用以下 jQuery 脚本:

jQuery(document).ready(function() {
  jQuery("span#fab").click(function () {
    jQuery(this).toggleClass("active");
  });
});

现在的问题是:我该如何修改现有的 CSS，以便新类“active”在点击时打开菜单？

谢谢!

Answer 1

编织: http://kodeweave.sourceforge.net/editor/#e884e37313af26b5738f11b2446bfb20

菜单从 :hover 打开.如果您使用 :active伪选择器你必须按住鼠标才能打开菜单(简而言之 :active 基本上是一个 mousedown/touchstart CSS 事件)

您实际上不需要 JQuery 来实现这种效果!您可以使用 checkbox 打开/关闭菜单或 :target pseudo selector .

我选择在下面的代码片段中使用复选框。

我删除了您 CSS 中的一些 vendor 前缀并将其替换为 Prefix-Free保留您的代码 DRY .

.fab {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 10;
}

.fab-button {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.28);
  border-radius: 50%;
  display: block;
  width: 56px;
  height: 56px;
  margin: 20px auto 0;
  position: relative;
  transition: all 0.2s ease-out;
  text-align: center;
}

#menu:checked,
.fab-button:active,
.fab-button:hover {
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.56);
}

.fab-button:not(:last-child) {
  width: 42px;
  height: 42px;
  margin: 10px auto 0;
  opacity: 0;
  transform: translateY(50px) scale(0.2);
}

#menu:checked ~ .fab-button:not(:last-child) {
  opacity: 1;
  transform: none;
  margin: 15px auto 0;
}

.fab-button i {
  color: #fff;
  font-size: 21px;
  text-align: center;
  line-height: 42px;
}

.fab-button:nth-last-child(1) i {
  line-height: 56px;
}

.fab-button:nth-last-child(1) {
  transition-delay: 25ms;
  background: #ff6d10;
  cursor: pointer;
}

.fab-button:not(:last-child):nth-last-child(2) {
  transition-delay: 50ms;
  background: #78c831;
}

.fab-button:not(:last-child):nth-last-child(3) {
  transition-delay: 75ms;
  background: #3f73fc;
}

.fab-button:not(:last-child):nth-last-child(4) {
  transition-delay: 100ms;
  background: #6d5593;
}

.fab-button:not(:last-child):nth-last-child(5) {
  transition-delay: 125ms;
  background: #f8ba24;
}

.fab-button:not(:last-child):nth-last-child(6) {
  transition-delay: 150ms;
  background: #1fc36a;
}

.fab-button:not(:last-child):nth-last-child(7) {
  transition-delay: 175ms;
  background: #242424;
}

.fab .fab-button:nth-last-child(1) i {
  transition: all 0.2s ease;
}

#menu:checked ~ .fab-button:nth-last-child(1) i {
  transform: rotate(-180deg);
}

[tooltip]:before {
  position: absolute;
  bottom: 22%;
  right: 100%;
  border-radius: 3px;
  background: #242424;
  color: #fff;
  content: attr(tooltip);
  font-size: 12px;
  line-height: 1;
  padding: 5px;
  margin-right: 10px;
  white-space: nowrap;
  visibility: hidden;
  opacity: 0;
}

[tooltip]:hover:before,
[tooltip]:hover:after {
  background: #000;
}

#menu:checked ~ [tooltip]:before,
#menu:checked ~ [tooltip]:after {
  visibility: visible;
  opacity: 1;
}

<link href="http://fontawesome.io/assets/font-awesome/css/font-awesome.css" rel="stylesheet"/>
<link href="https://necolas.github.io/normalize.css/4.1.1/normalize.css" rel="stylesheet"/>
<script src="https://leaverou.github.io/prefixfree/prefixfree.js"></script>

<nav class="fab">
  <input type="checkbox" id="menu">

  <a class="fab-button" href="#" tooltip="blaah"><i class="fa fa-angle-double-up"></i></a>
  <a class="fab-button" href="#" tooltip="blaah"><i class="fa fa-shopping-cart"></i></a>
  <a class="fab-button" href="#" tooltip="blaah"><i class="fa fa-users"></i></a>
  <a class="fab-button" href="#" tooltip="blaah"><i class="fa fa-microphone"></i></a>
  <a class="fab-button" href="#" tooltip="blaah"><i class="fa fa-gavel"></i></a>
  <a class="fab-button" href="#" tooltip="Forum"><i class="fa fa-comments"></i></a>
  <label for="menu" class="fab-button" id="fab"><i class="fa fa-bars"></i></label>
</nav>