如何在悬停时阻止单个物品向左移动

Question

我正在尝试创建一个带有下拉列表的反应性导航条。为了让事情变得更简单，我把我的css放在一个样式标签中。我已经尝试了我所能想到的一切，把“我们的故事”从左移到“我们的故事”。此外，为了使这更多的挑战，我只是允许自己使用HTML和CSS。

非常感谢你的帮助。

​

body {
  background-image: url(http://www.getuwired.com/devtest/Death_to_stock_photography_Vibrant.jpg);
  background-size: cover;
  background-repeat: no-repeat;
  font-size: 22px;
  line-height: 32px;
  color: #000;
  margin: 0;
  padding: 0;
  word-wrap: break-word !important;
  font-family: 'Roboto', sans-serif;
}

h1 {
  font-size: 60px;
  text-align: center;
  color: #FFF;
}

h3 {
  font-size: 30px;
  line-height: 34px;
  text-align: center;
  color: #FFF;
}

h3 a {
  color: #FFF;
}

a {
  color: #FFF;
}

h1 {
  margin-top: 100px;
  text-align: center;
  font-size: 60px;
  line-height: 70px;
  font-family: 'Bree Serif', 'serif';
}

#title {
  color: #000;
  text-shadow: none;
}

#container {
  margin: 0 auto;
  max-width: 890px;
}

p {
  text-align: center;
}

.toggle,
[id^=drop] {
  display: none;
}


/* Giving a background-color to the nav container. */

nav {
  margin: 0;
  padding: 1em;
  background-color: #FFF;
}

#logo {
  display: block;
  padding: 0 30px;
  float: left;
  font-size: 40px;
  font-weight: 700;
  line-height: 60px;
}


/* Since we'll have the "ul li" "float:left"
* we need to add a clear after the container. */

nav:after {
  content: "";
  display: table;
  clear: both;
}


/* Removing padding, margin and "list-style" from the "ul",
* and adding "position:reltive" */

nav ul {
  float: right;
  padding: 0;
  margin: 0;
  list-style: none;
  position: relative;
  background-color: #34cc99;
}


/* Positioning the navigation items inline */

nav ul li {
  margin: 0px;
  display: inline-block;
  float: left;
  background-color: #FFF;
}


/* Styling the links */

nav a {
  display: inline-block;
  padding: 14px 20px;
  color: #fff;
  font-size: 20px;
  text-decoration: none;
  white-space: nowrap;
  text-align: center;
}

nav ul li ul li:hover,
nav ul li:hover {
  background: #34cc99;
  color: #FFF;
  width: max-content;
  padding: 0%;
  text-align: center;
}

nav:hover {
  border-bottom: #34cc99 5px solid;
}


/* Background color change on Hover */

nav a:hover {
  background-color: #019966;
  color: #ffffff;
  text-shadow: 1px 1px lightgray;
  width: auto;
}


/* Hide Dropdowns by Default
* and giving it a position of absolute */

nav ul ul {
  display: none;
  position: absolute;
  /* has to be the same number as the "line-height" of "nav a" */
  top: 60px;
}


/* Display Dropdowns on Hover */

nav ul li:hover>ul {
  display: inherit;
  background-color: #019966;
  color: #FFF;
  text-align: center;
  width: max-content;
}


/* Fisrt Tier Dropdown */

nav ul ul li {
  width: auto;
  float: none;
  display: list-item;
  position: relative;
  background-color: #34cc99;
  color: #FFF;
}


/* Second, Third and more Tiers 
* We move the 2nd and 3rd etc tier dropdowns to the left
* by the amount of the width of the first tier.
*/

nav ul ul ul li {
  position: relative;
  top: -60px;
  /* has to be the same number as the "width" of "nav ul ul li" */
  left: 170px;
}


/* Change ' +' in order to change the Dropdown symbol */

li>a:after {
  content: ' ';
}

li>a:only-child:after {
  content: '';
}


/* Media Queries
--------------------------------------------- */

@media all and (max-width: 768px) {
  #logo {
    display: block;
    padding: 0;
    width: 100%;
    text-align: center;
    float: none;
  }
  nav {
    margin: 0;
  }
  /* Hide the navigation menu by default */
  /* Also hide the  */
  .toggle+a,
  .menu {
    display: none;
  }
  /* Styling the toggle lable */
  .toggle {
    display: block;
    background-color: #254441;
    padding: 14px 20px;
    color: #FFF;
    font-size: 17px;
    text-decoration: none;
    border: none;
  }
  .toggle:hover {
    background-color: #000000;
  }
  /* Display Dropdown when clicked on Parent Lable */
  [id^=drop]:checked+ul {
    display: block;
  }
  /* Change menu item's width to 100% */
  nav ul li {
    display: block;
    width: 100%;
  }
  nav ul ul .toggle,
  nav ul ul a {
    padding: 0 40px;
  }
  nav ul ul ul a {
    padding: 0 80px;
  }
  nav a:hover,
  nav ul ul ul a {
    background-color: #000000;
    color: #FFF;
  }
  nav ul li ul li .toggle,
  nav ul ul a,
  nav ul ul ul a {
    padding: 14px 20px;
    color: #FFF;
    font-size: 12px;
  }
  nav ul li ul li .toggle,
  nav ul ul a {
    background-color: #212121;
  }
  /* Hide Dropdowns by Default */
  nav ul ul {
    float: none;
    position: static;
    color: #ffffff;
    /* has to be the same number as the "line-height" of "nav a" */
  }
  /* Hide menus on hover */
  nav ul ul li:hover>ul,
  nav ul li:hover>ul {
    display: none;
  }
  /* Fisrt Tier Dropdown */
  nav ul ul li {
    display: block;
    width: 100%;
  }
  nav ul ul ul li {
    position: static;
    /* has to be the same number as the "width" of "nav ul ul li" */
  }
}

@media all and (max-width: 330px) {
  nav ul li {
    display: block;
    width: 94%;
  }
}

<nav>
  <div id="logo">GETUWIRED</div>

  <label for="drop" class="toggle">Menu</label>
  <input type="checkbox" id="drop" />
  <ul class="menu">
    <li>
      <!-- First Tier Drop Down -->
      <label for="drop-1" class="toggle">WordPress +</label>
      <a href="#" id="title">ABOUT</a>
      <input type="checkbox" id="drop-1" />
      <ul>
        <li><a href="#">OUR STORY</a></li>
        <li><a href="#">OUR COMMITMENT TO YOU</a></li>
      </ul>
    </li>
    <li>

      <!-- First Tier Drop Down -->
      <label for="drop-2" class="toggle">Web Design +</label>
      <a href="#" id="title">LOCATIONS</a>
      <input type="checkbox" id="drop-2" />
      <ul>
        <li><a href="#">AUSTIN, TX</a></li>
        <li><a href="#">ATLANTA, GA</a></li>
        <li><a href="#">SEATTLE, WA</a></li>
        <li><a href="#">PORTLAND, OR</a></li>
      </ul>
    </li>
    <li>
      <!-- First Tier Drop Down -->
      <label for="drop-1" class="toggle">WordPress +</label>
      <a href="#" id="title">PRODUCTS</a>
      <input type="checkbox" id="drop-3" />
      <ul>
        <li><a href="#">NEW ARRIVALS</a></li>
        <li><a href="#">FEATURED</a></li>
        <li><a href="#">TOP RATED</a></li>
        <li><a href="#">HIS</a></li>
        <li><a href="#">HERS</a></li>
        <li><a href="#">KIDS</a></li>
        <li><a href="#">ACCESSORIES</a></li>
        <li><a href="#">SPRING CATALOG</a></li>
        <li><a href="#">THE ESSENTIALS</a></li>
        <li><a href="#">SALE</a>
      </ul>
      </li>
      <li><a href="#" id="title">BLOG</a></li>
      <li><a href="#" id="title">CONTACT</a></li>
  </ul>
</nav>

​

Answer 1

我在这里做了测试，这个成功了：

    /* I modified that part */
    nav ul li ul li:hover,
    nav ul li:hover {
        background: #34cc99;
        color: #FFF;
        padding: 0%;
        text-align: center;
    }
    
    /* I added this part */
    nav ul li ul li {
        width: 100%;
    }

    /* I added this part */
    nav ul li ul li:hover a {
        max-width: 100%;
        display: block;
    }

Answer 2

试试这个解决方案

从以下位置删除width: max-content;：

nav ul li ul li:hover, nav ul li:hover { 
    background: #34cc99; 
    color: #FFF; 
    /* width: max-content;  */
    padding: 0%;  
    text-align: center;
}

另外，将display: block;添加到：

nav a:hover { 
    display: block;
    background-color: #019966; 
    color: #ffffff;
    text-shadow: 1px 1px lightgray;
    width: auto;
}