Question

我想在用户将鼠标悬停在其中一个上方时立即实现过渡效果导航栏上的图标。此刻刚刚显示的文字应该是有宽度过渡。我试图自己这样做，但我无法完成它不破坏设计的其余部分

HTML：

<header>
  <img src="http://www.websignature.ch/img/logo_nav.png" alt="WebSignature"/>
</header>

<nav>    
  <ul>
    <li><a href="#"><i class="fa fa-cogs"></i><span>Services</span></a></li><!--
 --><li><a href="#"><i class="fa fa-th-list"></i><span>Projects</span></a></li><!--
 --><li><a href="#"><i class="fa fa-users"></i><span>About</span></a></li><!--
 --><li><a href="#"><i class="fa fa-envelope"></i><span>Contact</span></a></li>
  </ul>
</nav>

CSS：

* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  padding: 0.5em;
  height: 4em;
  width: 100%;
  background: #2196F3;
  background: -webkit-linear-gradient(left, #2196F3, #1976D2);
  background: -o-linear-gradient(right, #2196F3, #1976D2);
  background: -moz-linear-gradient(right, #2196F3, #1976D2);
  background: linear-gradient(to right, #2196F3, #1976D2);
  -webkit-box-shadow: 0px 1px 5px 0px rgba(0,0,0,0.75);
  -moz-box-shadow: 0px 1px 5px 0px rgba(0,0,0,0.75);
  box-shadow: 0px 1px 5px 0px rgba(0,0,0,0.75);
}

header img {
  height: 100%;
  width: auto;
}

nav {
  position: fixed;
  top: 0;
  right: 0;
  background: #2196F3;
  background: -webkit-linear-gradient(left, #2196F3, #1976D2);
  background: -o-linear-gradient(right, #2196F3, #1976D2);
  background: -moz-linear-gradient(right, #2196F3, #1976D2);
  background: linear-gradient(to right, #2196F3, #1976D2);
  -webkit-filter:drop-shadow(2px 2px 5px rgba(0,0,0,0.75));
}

nav:before {
  content:"";
  position: absolute;
  top:0;
  right:100%;
  width: 0;
    height: 0;
    border-top: 81.78px solid #2196F3;
    border-left: 81.78px solid transparent;
}

nav ul li {
  display: inline-block;
}

nav ul li a {
  display: block;
  padding: 0.7em;
  color: #ffffff;
  text-decoration: none;
  font-size: 2em;
}

nav ul li a span {
  display: none;
  padding-left: 0.5em;
  overflow: hidden;
  font-family: 'Poppins', sans-serif;
}

nav ul li a:hover span {
  display: inline;
}

的jsfiddle： https://jsfiddle.net/Yunnigg/gL1uLLjs/

Answer 1

给它一个机会。基本上，我在这里做的是在span元素上设置文本缩进动画。这将指出你正确的方向。

* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  padding: 0.5em;
  height: 4em;
  width: 100%;
  background: #2196F3;
  background: -webkit-linear-gradient(left, #2196F3, #1976D2);
  background: -o-linear-gradient(right, #2196F3, #1976D2);
  background: -moz-linear-gradient(right, #2196F3, #1976D2);
  background: linear-gradient(to right, #2196F3, #1976D2);
  -webkit-box-shadow: 0px 1px 5px 0px rgba(0,0,0,0.75);
  -moz-box-shadow: 0px 1px 5px 0px rgba(0,0,0,0.75);
  box-shadow: 0px 1px 5px 0px rgba(0,0,0,0.75);
}

header img {
  height: 100%;
  width: auto;
}

nav {
  position: fixed;
  top: 0;
  right: 0;
  background: #2196F3;
  background: -webkit-linear-gradient(left, #2196F3, #1976D2);
  background: -o-linear-gradient(right, #2196F3, #1976D2);
  background: -moz-linear-gradient(right, #2196F3, #1976D2);
  background: linear-gradient(to right, #2196F3, #1976D2);
  -webkit-filter:drop-shadow(2px 2px 5px rgba(0,0,0,0.75));
}

nav:before {
  content:"";
  position: absolute;
  top:0;
  right:100%;
  width: 0;
    height: 0;
    border-top: 81.78px solid #2196F3;
    border-left: 81.78px solid transparent;
}

nav ul li {
  display: inline-block;
}

nav ul li a {
  display: block;
  padding: 0.7em;
  color: #ffffff;
  text-decoration: none;
  font-size: 2em;
}

nav ul li a span {
  padding-left: 0.5em;
  overflow: hidden;
  font-family: 'Poppins', sans-serif;
  display: inline-block;
  text-indent: -160px;
  transition: all 200ms;
}

nav ul li a:hover span {
  text-indent: 0px;
}

Answer 2

这是 Fiddle

希望它有所帮助。：）

<强>感谢

已修改nav css

nav ul{
 -webkit-transition:all 0.3s ease;
 transition:all 0.3s ease;
}
nav ul li {
 display: inline-block;
 -webkit-transition:all 0.3s ease;
 transition:all 0.3s ease;
}

nav ul li a {
 display: block;
 width:50px;
 padding: 0.7em;
 color: #ffffff;
 text-decoration: none;
 white-space:nowrap;
 font-size: 2em;
-webkit-transition:all 0.3s ease;
 transition:all 0.3s ease;
 position:relative;
}

nav ul li a span {
 display: none;
 padding-left: 0.5em;
 overflow: hidden;
 font-family: 'Poppins', sans-serif;
 }
nav ul li a:hover span{
display:inline;
}
nav ul li a:hover {
width:250px;
}

CSS3宽度过渡混乱设计

2 个答案: