Question

我有一个从高级开发人员那里继承来的代码库。单击时我需要打开汉堡包的帮助（即在移动/响应视图上）。

导航栏在桌面视图上工作正常，但在移动视图下无法打开。

我已经待了好几个小时了

我一直在与我的计算机和代码库聊天，以求怜悯我

我是一名初级开发人员，因此我缺乏见识潜在问题的远见。

请我的代码有什么问题？

#navbar {
  color: white; 
  position: fixed;
  top: 0;
  height: 60px;
  line-height: 60px;
  width: 100vw;
  z-index: 10;
}

.nav-wrapper {
  margin: auto;
  text-align: center;
  width: 70%;
} @media(max-width: 768px) {
    .nav-wrapper {
      width: 90%;
    }
  } @media(max-width: 638px) {
      .nav-wrapper {
        width: 100%;
      }
    } 


.logo {
  float: left;
  margin-left: 8px;
  font-size: 1.5em;
  height: 60px;
  letter-spacing: 1px;
  text-transform: uppercase;
} @media(max-width: 768px) {
    .logo {
/*       margin-left: 5px; */
    }
  }

#navbar ul {
  display: inline-block;
  float: right;
  list-style: none;
  /* margin-right: 14px; */
  margin-top: -2px;
  text-align: right;
  transition: transform 0.5s ease-out;
  -webkit-transition: transform 0.5s ease-out;
} @media(max-width: 640px) {
    #navbar ul {
      display: none;
    }
  } @media(orientation: landscape) {
      #navbar ul {
        display: inline-block;
      }
    }

#navbar li {
  display: inline-block;
}

#navbar li a {
  color: white;
  display: block;
  font-size: 0.8em;
  height: 50px;
  letter-spacing: 1px;
  margin: 0 20px;
  padding: 0 4px;
  position: relative;
  text-decoration: none;
  text-transform: uppercase;
  transition: all 0.5s ease;
  -webkit-transition: all 0.5s ease;
}

#navbar li a:hover {
  /* border-bottom: 1px solid rgb(28, 121, 184); */
  color:white;
  transition: all 1s ease;
  -webkit-transition: all 1s ease;
}

/* Animated Bottom Line */
#navbar li a:before, #navbar li a:after {
  content: '';
  position: absolute;
  width: 0%;
  height: 1px;
  bottom: -1px;
  background: white;
}

#navbar li a:before {
  left: 0;
  transition: 0.7s;
}

#navbar li a:after {
  background: rgb(13, 26, 38);
  right: 0;
  /* transition: width 0.8s cubic-bezier(0.22, 0.61, 0.36, 1); */
}

#navbar li a:hover:before {
  background: white;
  width: 100%;
  transition: width 0.5s cubic-bezier((0.22, 0.61, 0.36, 1));
}

#navbar li a:hover:after {
  background: transparent;
  width: 100%;
  /* transition: 0s; */
}



/*======================================================
                    Mobile Menu Menu Icon
  ======================================================*/
@media(max-width: 640px) {
  .menuIcon {
    cursor: pointer;
    display: block;
    position: fixed;
    right: 15px;
    top: 20px;
    height: 23px;
    width: 27px;
    z-index: 12;
  }

  /* Icon Bars */
  .icon-bars {
    background: rgb(13, 26, 38);
    position: absolute;
    left: 1px;
    top: 45%;
    height: 2px;
    width: 20px;
    -webkit-transition: 0.4s;
    transition: 0.4s;
  } 

  .icon-bars::before {
    background: rgb(13, 26, 38);
    content: '';
    position: absolute;
    left: 0;
    top: -8px;
    height: 2px;
    width: 20px;
/*     -webkit-transition: top 0.2s ease 0.3s;
    transition: top 0.2s ease 0.3s; */
    -webkit-transition: 0.3s width 0.4s;
    transition: 0.3s width 0.4s;
  }

  .icon-bars::after {
    margin-top: 0px;
    background: rgb(13, 26, 38);
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    height: 2px;
    width: 20px;
/*     -webkit-transition: top 0.2s ease 0.3s;
    transition: top 0.2s ease 0.3s; */
    -webkit-transition: 0.3s width 0.4s;
    transition: 0.3s width 0.4s;
  }

  /* Bars Shadows */
  .icon-bars.overlay {
    background: rgb(97, 114, 129);
    background: rgb(183, 199, 211);
    width: 20px;
    animation: middleBar 3s infinite 0.5s;
    -webkit-animation: middleBar 3s infinite 0.5s;
  } @keyframes middleBar {
      0% {width: 0px}
      50% {width: 20px}
      100% {width: 0px}
    } @-webkit-keyframes middleBar {
        0% {width: 0px}
        50% {width: 20px}
        100% {width: 0px}
      }

  .icon-bars.overlay::before {
    background: rgb(97, 114, 129);
    background: rgb(183, 199, 211);
    width: 10px;
    animation: topBar 3s infinite 0.2s;
    -webkit-animation: topBar 3s infinite 0s;
  } @keyframes topBar {
      0% {width: 0px}
      50% {width: 10px}
      100% {width: 0px}
    } @-webkit-keyframes topBar {
        0% {width: 0px}
        50% {width: 10px}
        100% {width: 0px}
      }

  .icon-bars.overlay::after {
    background: rgb(97, 114, 129);
    background: rgb(183, 199, 211);
    width: 15px;
    animation: bottomBar 3s infinite 1s;
    -webkit-animation: bottomBar 3s infinite 1s;
  } @keyframes bottomBar {
      0% {width: 0px}
      50% {width: 15px}
      100% {width: 0px}
    } @-webkit-keyframes bottomBar {
        0% {width: 0px}
        50% {width: 15px}
        100% {width: 0px}
      }


  /* Toggle Menu Icon */
  .menuIcon.toggle .icon-bars {
    top: 5px;
    transform: translate3d(0, 5px, 0) rotate(135deg);
    transition-delay: 0.1s;
    transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  }

  .menuIcon.toggle .icon-bars::before {
    top: 0;
    transition-delay: 0.1s;
    opacity: 0;
  }

  .menuIcon.toggle .icon-bars::after {
    top: 10px;
    transform: translate3d(0, -10px, 0) rotate(-270deg);
    transition-delay: 0.1s;
    transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  }

  .menuIcon.toggle .icon-bars.overlay {
    width: 20px;
    opacity: 0;
    -webkit-transition: all 0s ease 0s;
    transition: all 0s ease 0s;
  }
}


/*======================================================
                   Responsive Mobile Menu 
  ======================================================*/
.overlay-menu {
  background: lightblue;
  color: rgb(13, 26, 38);
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 0;
  right: 0;
  padding-right: 15px;
  transform: translateX(-100%);
  width: 100vw;
  height: 100vh;
  -webkit-transition: transform 0.2s ease-out;
  transition: transform 0.2s ease-out;
}

.overlay-menu ul, .overlay-menu li {
  display: block;
  position: relative;
}

.overlay-menu li a {
  display: block;
  font-size: 1.8em;
  letter-spacing: 4px;
/*   opacity: 0; */
  padding: 10px 0;
  text-align: right;
  text-transform: uppercase;
  -webkit-transition: color 0.3s ease;
  transition: color 0.3s ease;
/*   -webkit-transition: 0.2s opacity 0.2s ease-out;
  transition: 0.2s opacity 0.2s ease-out; */
}

.overlay-menu li a:hover,
.overlay-menu li a:active {
  color: rgb(28, 121, 184);
  -webkit-transition: color 0.3s ease;
  transition: color 0.3s ease;
}

<nav id="navbar" class="">
  <div class="nav-wrapper">
    <!-- Navbar Logo -->
    <div class="logo">
      <!-- Logo Placeholder  -->
      <img src="id logos.png">
    </div>

    <!-- Navbar Links -->
    <ul id="menu">
    <li><a href="index.html">Home</a></li>
   <li><a href="About Me.html">About</a></li>
    <li><a href="Portfolio page.html">Portfolio</a></li>
   
   
    </ul>
  </div>
</nav>


<!-- Menu Icon -->
<div class="menuIcon">
  <span class="icon icon-bars"></span>
  <span class="icon icon-bars overlay"></span>
</div>

Answer 1

您需要一个相应的javascript事件侦听器来触发菜单上的活动状态...

通常，我通过切换CSS类并让CSS过渡处理所有内容来实现此目的。您的代码是一堵漫长的文字墙，因此，我仅以一些标记为例，您可以根据需要将其应用于代码。

首先，让我们做一些html：

<ul id="menu">
    <li><a href="#">Link 1</a></li>
    <li><a href="#">Link 2</a></li>
    <li><a href="#">Link 3</a></li>
</ul>

<div id="hamburger">
    <span></span>
    <span></span>
    <span></span>
</div>

现在有一些简单的CSS：

#menu{
    display:block;
    width:100%;
    height:100vh;
    position:fixed;
    top:0;
    left:100%;
    z-index:100;
    background:#000;
    padding:4rem;
    transition:.5s;
}

#menu.active{
    left:0;
}

#hamburger{
    position:relative;
    padding:.5rem;
    background:#000;
    z-index:101;
}

#hamburger span{
    width:100%;
    height:2px;
    background:#fff;
    display:block;
    margin-bottom:5px;
    transition:.5s;
}

#hamburger.active span:nth-child(1){
    transform:rotate(-45deg);
}

#hamburger.active span:nth-child(2){
    width:0;
}

#hamburger.active span:nth-child(3){
    transform:rotate(45deg);
}

现在有一些基本的JavaScript侦听器（原始javascript）：

document.getElementById('hamburger').addEventListener('click', function(){
    document.getElementById('hamburger').classList.toggle('active');
    document.getElementById('menu').classList.toggle('active');
});

为简单起见，这是一个现代的浏览器示例。 IE pre v10可能无法处理此示例，但这是您的另一趟旅程。

一个jQuery示例：

$('#hamburger').click(function(){
    $(this).toggleClass('active');
    $('#menu').toggleClass('active');
});

因此，总而言之，您基本上听不到汉堡包。这些都可能有效，但这实际上只是伪代码。我什么也没测试。但这足以立即运行。通过这个示例，您应该能够使事情变得更动。

Answer 2

添加断点

希望这对您有所帮助。请根据您的设备尝试媒体查询。

媒体查询可以提供帮助。我们可以添加一个断点，使设计的某些部分在断点的每一侧表现不同。

body {
  background-color: lightgreen;
}

@media only screen and (max-width: 600px) {
  body {
    background-color: lightblue;
  }
}

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">

</head>
<body>

<p>Resize the browser window. When the width of this document is 600 pixels or less, the background-color is "lightblue", otherwise it is "lightgreen".</p>

</body>
</html>

媒体查询是CSS3中引入的一种CSS技术。

仅当满足特定条件时，它才使用@media规则包含CSS属性块。

如何打开不想打开的汉堡包？

2 个答案:

添加断点