Material Design 风格侧边栏菜单变形效果

PetitQ 导航菜单 2019-3-10 1.71K 0 0

这是一款使用 CSS3 和少量 jQuery 代码来制作的 Material Design 风格侧边栏菜单变形效果。该侧边栏菜单开始时是一个汉堡包按钮，当用户点击该按钮之后，按钮会变形展开为右侧固定的侧边栏菜单。

HTML 结构

该侧边栏菜单的 HTML 结构如下：

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```
<div class="menu-expanded">
```
```
  <div id="menu" class="menu"></div>
```
```
  <span class="linee linea1"></span>
```
```
  <span class="linee linea2"></span>
```
```
  <span class="linee linea3"></span>
```
```
  <div class="main-menu">
```
```
    <ul>
```
```
      <li><a href="#">Home</a></li>
```

      <li><a href="#">Categories</a></li>

```
      <li><a href="#">Works</a></li>
```

      <li><a href="#"><a href="#">Portfolio</a></a></li>

      <li><a href="#">Contact Us</a></li>

```
      <li><a href="#">About Us</a></li>
```
```
    </ul>
```
```
  </div>
```
```
</div>
```

CSS 样式

侧边栏菜单的样式如下：

```
.menu-expanded {
```
```
  background-color: transparent;
```
```
  position: fixed;
```
```
  width: 340px;
```
```
  height:100%;
```
```
  top: 0px;
```
```
  right: 0px;
```
```
  overflow: hidden !important;
```
```
  z-index: 5;
```
```
}
```
```
 
```
```
.menu {
```
```
  float: right;
```
```
  margin: 15px 15px 0 0;
```
```
  height: 49px;
```
```
  width: 49px;
```
```
  border-radius: 50%;
```
```
  background-color: #EE283D;
```
```
  border: none;
```
```
  transition: all 0.40s ease-out;
```
```
}
```
```
 
```
```
.main-menu {
```
```
  visibility: hidden;
```
```
  position: absolute;
```
```
  right: 50px;
```
```
  top: 160px;
```
```
  opacity: 0;
```
```
  transition: all 0.300s;
```
```
  transition-delay: 0s;
```
```
}
```
```
 
```
```
.main-menu ul {
```
```
  list-style-type: none;
```
```
}
```
```
 
```
```
.main-menu ul li {
```
```
  margin: 20px 0px;
```
```
}
```
```
 
```
```
.main-menu ul li a {
```
```
  float: right;
```
```
  text-decoration: none;
```
```
  color: transparent;
```
```
  background-color: #DB0024;
```
```
  margin-top: 20px;
```
```
}
```
```
 
```
```
.main-menu ul li a:hover {
```
```
  opacity: 0.7;
```
```
}
```

汉堡包按钮的主要样式如下：

```
.menu,
```
```
.linee {
```
```
  cursor: pointer;
```
```
}
```
```
 
```
```
.over {
```
```
  transform: scale(100);
```
```
  transition: all 0.350s ease-in;
```
```
  cursor: default;
```
```
}
```
```
 
```
```
.linea1 {
```
```
  background: #fff;
```
```
  height: 2px;
```
```
  width: 15px;
```
```
  position: absolute;
```
```
  right: 33px;
```
```
  top: 33px;
```
```
  transition: all 0.3s;
```
```
}
```
```
 
```
```
.linea2 {
```
```
  background: #fff;
```
```
  height: 2px;
```
```
  width: 15px;
```
```
  position: absolute;
```
```
  right: 33px;
```
```
  top: 38px;
```
```
  opacity: 1;
```
```
  transition: opacity 0.5s;
```
```
}
```
```
 
```
```
.linea3 {
```
```
  background: #fff;
```
```
  height: 2px;
```
```
  width: 15px;
```
```
  position: absolute;
```
```
  right: 33px;
```
```
  top: 43px;
```
```
}
```
```
 
```
```
.overL1 {
```
```
  animation: closetop 1s forwards;
```
```
  animation-direction: alternate;
```
```
  cursor: pointer;
```
```
}
```
```
 
```
```
.overL2 {
```
```
  opacity: 0;
```
```
  transition: opacity 0.5s;
```
```
  cursor: pointer;
```
```
}
```
```
 
```
```
.overL3 {
```
```
  animation: closebottom 1s forwards;
```
```
  animation-direction: alternate;
```
```
  cursor: pointer;
```
```
}
```

汉堡包按钮变形为侧边栏菜单的 CSS 代码如下：

```
@keyframes closetop {
```
```
  0% {
```

    transform: translateY(5px) rotate(0deg);

```
  }
```
```
  25% {
```

    transform: translateY(5px) rotate(0deg);

```
  }
```
```
  75% {
```

    transform: translateY(5px) rotate(-45deg);

```
  }
```
```
  100% {
```

    transform: translateY(5px) rotate(-45deg);

```
  }
```
```
}
```
```
 
```
```
@keyframes closebottom {
```
```
  0% {
```

    transform: translateY(0px) rotate(0deg);

```
  }
```
```
  25% {
```

    transform: translateY(-5px) rotate(0deg);

```
  }
```
```
  75% {
```

    transform: translateY(-5px) rotate(45deg);

```
  }
```
```
  100% {
```

    transform: translateY(-5px) rotate(45deg);

```
  }
```
```
}
```
```
 
```
```
.overmain {
```
```
  visibility: visible;
```
```
  opacity: 1;
```
```
  transition: all 0.400s;
```
```
  transition-delay: 0.370s;
```
```
}
```

JavaScript

该特效使用 jQuery 代码来为按钮点击时切换相应元素的 class。

$('.menu , .linee').on('click', function() {

```
  $('.menu').toggleClass('over')
```
```
  $('.linea1').toggleClass('overL1')
```
```
  $('.linea2').toggleClass('overL2')
```
```
  $('.linea3').toggleClass('overL3')
```

  $('.main-menu').toggleClass('overmain')

```
});
```

Material Design 风格侧边栏菜单变形效果

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导航菜单

Material Design 风格侧边栏菜单变形效果

HTML 结构

CSS 样式

JavaScript

Material Design 风格侧边栏菜单变形效果

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