悬停在我的导航中，因为每个图标都有不同的大小

Question

我正在寻找解决这个问题的方法：我有一个垂直导航，我使用的图标有不同的大小，但我通过使用不同的ID调整它们的大小来"修复"它。现在我想要对它们进行悬停效果。但是由于图标的大小不同，悬停按钮适合我的导航边框。我希望他们这样做：https://www.w3schools.com/w3css/tryw3css_templates_dark_portfolio.htm有人可以帮助我吗？

  <nav class="hidden-mobile" id="menue">
  <div class="navItem">
  <img src="./img/home_website.png" class="icon" class="current" id="homeicon"><br>
  <a class="icontitle" href="./fotowand.html">HOME</a>
  <div class="after"></div>
</div>
  <div class="navItem">
  <img src="./img/studieninteressierte.png"class="icon"><br>
   <a class="icontitle" href="">STUDIEN-<br>INTERESSIERTE</a>
   <div class="after"></div>
 </div>
  <div class="navItem">
   <img src="./img/studierende.png" class="icon" id="studierendeicon"><br>
   <a class="icontitle" href="">STUDIERENDE</a>
   <div class="after"></div>
 </div>
 <div class="navItem">
  <img src="./img/unternehmen.png" class="icon" id="unternehmenicon"><br>
   <a class="icontitle" href="">UNTERNEHMEN</a>
   <div class="after"></div>
 </div>
   <div class="navItem">
   <img src="./img/kontakt.png" class="icon"><br>
   <a class="icontitle" href="">KONTAKT</a>
   <div class="after"></div>
 </div>
</nav>

这是我的 CSS

  .navItem {
  text-align: center;
  display: inline-block;
  position: relative;
  margin-right: 1em;
  margin-bottom: 1em;
}
.icon {
  width:80px;
}
.after {
  position: absolute;
  top: 0;
  left: 0;
  width:200px;
  height: 100px;
  display: none;
  text-align: center;
  color: white;
}
.navItem:hover .after {
 background-color: rgba(0, 0, 0, .6);
 display: block;
 left:0px;
}

导航截图

导航截图

Answer 1

试试这个：

1. 您需要删除after类指定的宽度和高度。

2. 您可以直接给出navItem的:hover.

附上工作副本。

.navItem {
  text-align: center;
  display: inline-block;
  position: relative;
  margin-right: 1em;
  margin-bottom: 1em;
}
.icon {
  width:80px;
}
.after {
  position: absolute;
  top: 0;
  left: 0;
 
  display: none;
  text-align: center;
  color: white;
}
.navItem:hover {
    background: rgba(0, 0, 0, .6);
}

<nav class="hidden-mobile" id="menue">
  <div class="navItem">
  <img src="./img/home_website.png" class="icon" class="current" id="homeicon"><br>
  <a class="icontitle" href="./fotowand.html">HOME</a>
  <div class="after"></div>
</div>
  <div class="navItem">
  <img src="./img/studieninteressierte.png"class="icon"><br>
   <a class="icontitle" href="">STUDIEN-<br>INTERESSIERTE</a>
   <div class="after"></div>
 </div>
  <div class="navItem">
   <img src="./img/studierende.png" class="icon" id="studierendeicon"><br>
   <a class="icontitle" href="">STUDIERENDE</a>
   <div class="after"></div>
 </div>
 <div class="navItem">
  <img src="./img/unternehmen.png" class="icon" id="unternehmenicon"><br>
   <a class="icontitle" href="">UNTERNEHMEN</a>
   <div class="after"></div>
 </div>
   <div class="navItem">
   <img src="./img/kontakt.png" class="icon"><br>
   <a class="icontitle" href="">KONTAKT</a>
   <div class="after"></div>
 </div>
</nav>

我希望这对你有帮助。祝你好运！

Answer 2

您可以在悬停时应用变换效果。

.navItem:hover{
   transform: scale(2);
}

.navItem {
  text-align: center;
  display: inline-block;
  position: relative;
  margin-right: 1em;
  margin-bottom: 1em;
  transition: all 500ms ease;
}
.icon {
  width:80px;
}
.after {
  position: absolute;
  top: 0;
  left: 0;
 
  display: none;
  text-align: center;
  color: white;
}
.navItem:hover {
    transform: scale(2);
}

<nav class="hidden-mobile" id="menue">
  <div class="navItem">
  <img src="./img/home_website.png" class="icon" class="current" id="homeicon"><br>
  <a class="icontitle" href="./fotowand.html">HOME</a>
  <div class="after"></div>
</div>
  <div class="navItem">
  <img src="./img/studieninteressierte.png"class="icon"><br>
   <a class="icontitle" href="">STUDIEN-<br>INTERESSIERTE</a>
   <div class="after"></div>
 </div>
  <div class="navItem">
   <img src="./img/studierende.png" class="icon" id="studierendeicon"><br>
   <a class="icontitle" href="">STUDIERENDE</a>
   <div class="after"></div>
 </div>
 <div class="navItem">
  <img src="./img/unternehmen.png" class="icon" id="unternehmenicon"><br>
   <a class="icontitle" href="">UNTERNEHMEN</a>
   <div class="after"></div>
 </div>
   <div class="navItem">
   <img src="./img/kontakt.png" class="icon"><br>
   <a class="icontitle" href="">KONTAKT</a>
   <div class="after"></div>
 </div>
</nav>

Answer 3

<div class="navItem" id="studierendeicon">
   <a class="icontitle" href="" >STUDIERENDE</a>
   <div class="after"></div>
 </div>
#studierendeicon{
background-image: url('./img/studierende.png')
background-position: center center; //change on needs
}
.navItem{
width: 80px;
}

让我知道它是否有效