javascript - 响应式菜单在网站上不起作用

Question

我编写了响应式菜单，但它不起作用。我的期望:当你点击汉堡包菜单时，菜单会变成关闭图标，全屏菜单打开(背景->不透明度.5)。

我不确定哪里错了。 CSS？还是 js？你有什么建议吗？任何帮助表示赞赏。非常感谢。

$(document).ready(function() {
  let hamburgerClicked = false;

  $('#toggle').on("click", function() {
    if (hamburgerClicked == false) {
      $(".top").css('transform', 'translate (11px) translateX(0) rotate(45deg)');
      $(".bottom").css('transform', 'translateY(-11px) translateX(0) rotate(-45deg)');

      hamburgerClicked = true;
    } else {
      $(".top").css('transform', 'translate (0px) translateX(0) rotate(0deg)');
      $(".bottom").css('transform', 'translateY (0px) translateX(0) rotate(0deg)');
      hamburgerClicked = false;
    }
    $("#overlay").toggleClass('active');
    $('#overlay').toggleClass('open');
  });
});

.button-container {
  position: fixed;
  top: 5%;
  right: 2%;
  height: 27px;
  width: 35px;
  cursor: pointer;
  z-index: 100;
  transition: opacity .25s ease;
  opacity: 1;
  content: "";
}

.button-container:hover {
  opacity: .7;
}

.top:active {
  transform: translate(11px) translateX(0) rotate(45deg);
}

.middle:active {
  opacity: 0;
}

.bottom:active {
  transform: translateY(-11px) translateX(0) rotate(-45deg);
}

span {
  background: #fff;
  border: none;
  height: 4px;
  width: 32px;
  position: absolute;
  top: 0;
  left: 0;
  transition: all .35s ease;
  cursor: pointer;
  border-radius: 3px;
}

.middle {
  top: 10px;
}

.bottom {
  top: 20px;
}

.overlay {
  z-index: 500;
  position: fixed;
  background: rgba(0, 0, 0, 0.6);
  top: 0;
  left: 0;
  width: 5%;
  height: 0%;
  opacity: .6;
  visibility: hidden;
  transition: opacity .35s, visibility .35s, height .35s;
}

li {
  animation: fadeInRight .5s ease forwards;
  animation-delay: .35s;
}

li:nth-of-type(2) {
  animation-delay: .4s;
}

li:nth-of-type(3) {
  animation-delay: .45s;
}

li:nth-of-type(4) {
  animation-delay: .50s;
}

nav {
  position: relative;
  height: 70%;
  top: 20%;
  transform: translateY(-50%);
  font-size: 0.8em;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  display: inline-block;
  position: relative;
  height: 100%;
}

li {
  display: block;
  height: 25%;
  min-height: 50px;
  position: relative;
  opacity: 0;
}

a {
  display: block;
  position: relative;
  text-decoration: none;
  overflow: hidden;
}

a:hover {
  transform: scale(1);
}

a:hover:after,
a:focus:after,
a:active:after {
  width: 30%;
}

a:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0%;
  transform: translateX(-50%);
  height: 3px;
  background: rgba(0, 0, 0, 0.6);
  transition: .35s;
}

@keyframes fadeInRight {
  0% {
    opacity: 0;
    left: 20%;
  }
  100% {
    opacity: 1;
    left: 0;
  }
}

.active {
  visibility: visible;
}

<div class="button-container" id="toggle">
  <span class="top"></span>
  <span class="middle"></span>
  <span class="bottom"></span>
</div>
<div class="overlay" id="overlay">
  <nav class="overlay-menu">
    <ul>
      <li><a href="#constellation">Home</a></li>
      <li><a href="#what is constellations?">About</a></li>
      <li><a href="#12 constellations">12 Constellations</a></li>
      <li><a href="#">Stargazing</a></li>
    </ul>
  </nav>
</div>
</header>

Answer 1

您的 Javascript 代码有错误。

当您更改 .top span 的 css 时，您使用的是“translate”而不是“translateY”。

$(".top").css('transform', 'translate (11px) translateX(0) rotate(45deg)'); // In if condition
$(".top").css ('transform', 'translate (0px) translateX(0) rotate(0deg)'); // In else condition

这应该是:

$(".top").css('transform', 'translateY(11px) translateX(0) rotate(45deg)'); // In if condition
$(".top").css ('transform', 'translateY(0px) translateX(0) rotate(0deg)'); // In else condition

此外，当单击按钮时，您应该切换中间跨度的可见性，使按钮看起来像一个十字。

$(".middle").css("display", "none"); // In if condition
$(".middle").css("display", ""); // In else condition

这是 JSFiddle 上的工作演示:https://jsfiddle.net/0p9faz7m/