单击导航按钮时,如何关闭导航栏?

时间:2019-06-18 03:46:00

标签: html css

当我单击导航按钮时,导航栏保持打开状态。我真的是编码新手,不胜感激!我可以按一下汉堡按钮来打开和关闭。但是,当我单击链接浏览网站时,单击导航栏将保持打开状态。

*{
  margin:0;
  padding:0;
  box-sizing: inherit;
}
.nav {
    height: 50px;
    width: 100%;
    background-color: #4d4d4d;
    /* position: relative; */
    position: fixed;
    z-index: 10;
}

.nav > .nav-header {
  display: inline;
}

.nav > .nav-header > .nav-title {
  display: inline-block;
  font-size: 22px;
  color: #fff;
  padding: 10px 10px 10px 10px;
}

.nav > .nav-btn {
  display: none;

}

.nav > .nav-links {
  display: inline;
  /* float: right; */
  font-size: 18px;
}

.nav > .nav-links > a {
  display: inline-block;
  padding: 13px 10px 13px 10px;
  text-decoration: none;
  color: #efefef;
}

.nav > .nav-links > a:hover {
  background-color: rgba(0, 0, 0, 0.3);
}

.nav > #nav-check {
  display: none;
}

@media (max-width:700px) {
  .nav > .nav-btn {
    display: inline-block;
    position: absolute;
    right: 0px;
    top: 0px;
  }
  .nav > .nav-btn > label {
    display: inline-block;
    width: 50px;
    height: 50px;
    padding: 13px;
  }
  .nav > .nav-btn > label:hover,.nav  #nav-check:checked ~ .nav-btn > label {
    background-color: rgba(0, 0, 0, 0.3);
  }
  .nav > .nav-btn > label > span {
    display: block;
    width: 25px;
    height: 10px;
    border-top: 2px solid #eee;
  }
  .nav > .nav-links {
    position: absolute;
    display: block;
    width: 100%;
    background-color: #333;
    height: 0px;
    transition: all 0.3s ease-in;
    overflow-y: hidden;
    top: 50px;
    left: 0px;
    z-index: 10;
  }
  .nav > .nav-links > a {
    display: block;
    width: 100%;
  }
  .nav > #nav-check:not(:checked) ~ .nav-links {
    height: 0px;
  }
  .nav > #nav-check:checked ~ .nav-links {
    height: calc(100vh - 50px);
    overflow-y: auto;
  }
}
<div class="nav">

    <input type="checkbox" id="nav-check">
    
    <div class="nav-header">
      <div class="nav-title">
        Gallegos Landscaping
      </div>
    </div>
    
    <div class="nav-btn">
      <label for="nav-check">
        <span></span>
        <span></span>
        <span></span>
      </label>
    </div>

    <div class="nav-links">
      <a href="#">Home</a>
      <a href="#about1">About</a>
      <a href="#services1">Services</a>
      <a href="#">Contact</a>
    </div>
    
</div>

3 个答案:

答案 0 :(得分:3)

这就像您使用复选框来控制可见性一样,这实际上是很聪明的,而且我之前从未见过,但是在此用例中有所限制。

我认为一种更简单,更动态的方法是添加一些简单的JavaScript。您可以在菜单按钮上添加onClick处理函数,通过添加CSS来显示/隐藏菜单。

例如:

// JS
const menu = document.querySelector('.menu');
const menuToggle = document.querySelector('.menuToggle');

menuToggle.addEventListener('click', (e) => {
  e.preventDefault();

  if (window.getComputedStyle(menu).display === 'block') {
    menu.style.display = 'none';
  } else  {
    menu.style.display = 'block';
  }
});

这样,您可以更好地控制打开/关闭菜单。现在,它保持打开状态,因为复选框处于选中状态,但未更新

答案 1 :(得分:0)

我认为仅靠CSS不可能实现您所需要的。 因此,我添加了一个jQuery解决方案。

我在这里所做的是在单击链接后取消选中该复选框。因此,这触发了下拉菜单的关闭。

$('.nav-links > a').on('click', ()=>{

  $('#nav-check').prop('checked', false);
  
});
*{
  margin:0;
  padding:0;
  box-sizing: inherit;
}
.nav {
    height: 50px;
    width: 100%;
    background-color: #4d4d4d;
    /* position: relative; */
    position: fixed;
    z-index: 10;
}

.nav > .nav-header {
  display: inline;
}

.nav > .nav-header > .nav-title {
  display: inline-block;
  font-size: 22px;
  color: #fff;
  padding: 10px 10px 10px 10px;
}

.nav > .nav-btn {
  display: none;

}

.nav > .nav-links {
  display: inline;
  /* float: right; */
  font-size: 18px;
}

.nav > .nav-links > a {
  display: inline-block;
  padding: 13px 10px 13px 10px;
  text-decoration: none;
  color: #efefef;
}

.nav > .nav-links > a:hover {
  background-color: rgba(0, 0, 0, 0.3);
}

.nav > #nav-check {
  display: none;
}

@media (max-width:1000px) {
  .nav > .nav-btn {
    display: inline-block;
    position: absolute;
    right: 0px;
    top: 0px;
  }
  .nav > .nav-btn > label {
    display: inline-block;
    width: 50px;
    height: 50px;
    padding: 13px;
  }
  .nav > .nav-btn > label:hover,.nav  #nav-check:checked ~ .nav-btn > label {
    background-color: rgba(0, 0, 0, 0.3);
  }
  .nav > .nav-btn > label > span {
    display: block;
    width: 25px;
    height: 10px;
    border-top: 2px solid #eee;
  }
  .nav > .nav-links {
    position: absolute;
    display: block;
    width: 100%;
    background-color: #333;
    height: 0px;
    transition: all 0.3s ease-in;
    overflow-y: hidden;
    top: 50px;
    left: 0px;
    z-index: 10;
  }
  .nav > .nav-links > a {
    display: block;
    width: 100%;
  }
  .nav > #nav-check:not(:checked) ~ .nav-links {
    height: 0px;
  }
  .nav > #nav-check:checked ~ .nav-links {
    height: calc(100vh - 50px);
    overflow-y: auto;
  }
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="nav">

    <input type="checkbox" id="nav-check">
    
    <div class="nav-header">
      <div class="nav-title">
        Gallegos Landscaping
      </div>
    </div>
    
    <div class="nav-btn">
      <label for="nav-check">
        <span></span>
        <span></span>
        <span></span>
      </label>
    </div>

    <div class="nav-links">
      <a href="#">Home</a>
      <a href="#about1">About</a>
      <a href="#services1">Services</a>
      <a href="#">Contact</a>
    </div>
    
</div>

答案 2 :(得分:0)

这是可以解决您问题的代码。

我已经在您的代码中添加了一个小脚本,该脚本将在单击菜单项时关闭导航栏。

data PromptResult a = Done a | NeedsMoreInput (Prompt a)

purePrompt :: Prompt a -> [Text] -> ([Text], PromptResult a)
purePrompt = {- ... -}