如何在 MouseOver 上为 CSS 动画汉堡图标设置动画答案

【问题标题】：How To Animate CSS Animated Hamburger Icon On MouseOver如何在 MouseOver 上为 CSS 动画汉堡图标设置动画
【发布时间】：2017-05-09 08:18:27
【问题描述】：

我在http://elijahmanor.com/css-animated-hamburger-icon/ 有一个动画 CSS Hamburger 图标，我想使用它，但我想通过悬停使用它来查看 set ex(x)，当不悬停时将其设置为 3 行的默认样式.但即使我使用了悬停功能，我也无法做到这一点。

document.querySelector("#nav-toggle")
  .addEventListener("click", function() {
    this.classList.toggle("active");
  });

#nav-toggle {
  position: absolute;
  left: 50%;
  top: 50%;
}

#nav-toggle {
  cursor: pointer;
  padding: 10px 35px 16px 0px;
}

#nav-toggle span,
#nav-toggle span:before,
#nav-toggle span:after {
  cursor: pointer;
  border-radius: 1px;
  height: 5px;
  width: 35px;
  background: black;
  position: absolute;
  display: block;
  content: '';
}

#nav-toggle span:before {
  top: -10px;
}

#nav-toggle span:after {
  bottom: -10px;
}

#nav-toggle span,
#nav-toggle span:before,
#nav-toggle span:after {
  transition: all 500ms ease-in-out;
}

#nav-toggle.active span {
  background-color: transparent;
}

#nav-toggle.active span:before,
#nav-toggle.active span:after {
  top: 0;
}

#nav-toggle.active span:before {
  transform: rotate(45deg);
}

#nav-toggle.active span:after {
  transform: rotate(-45deg);
}

&lt;a id="nav-toggle" href="#"&gt;&lt;span&gt;&lt;/span&gt;&lt;/a&gt;

【问题讨论】：

标签： javascript jquery html css animation

【解决方案1】：

您可以使用鼠标悬停功能。

document.querySelector("#nav-toggle")
  .addEventListener("mouseover", function() {
    this.classList.toggle("active");
  });

#nav-toggle {
  position: absolute;
  left: 50%;
  top: 50%;
}

#nav-toggle {
  cursor: pointer;
  padding: 10px 35px 16px 0px;
}

#nav-toggle span,
#nav-toggle span:before,
#nav-toggle span:after {
  cursor: pointer;
  border-radius: 1px;
  height: 5px;
  width: 35px;
  background: black;
  position: absolute;
  display: block;
  content: '';
}

#nav-toggle span:before {
  top: -10px;
}

#nav-toggle span:after {
  bottom: -10px;
}

#nav-toggle span,
#nav-toggle span:before,
#nav-toggle span:after {
  transition: all 500ms ease-in-out;
}

#nav-toggle.active span {
  background-color: transparent;
}

#nav-toggle.active span:before,
#nav-toggle.active span:after {
  top: 0;
}

#nav-toggle.active span:before {
  transform: rotate(45deg);
}

#nav-toggle.active span:after {
  transform: rotate(-45deg);
}

&lt;a id="nav-toggle" href="#"&gt;&lt;span&gt;&lt;/span&gt;&lt;/a&gt;

【讨论】：

【解决方案2】：

您只需在脚本中使用mouseover 而不是hover。

document.querySelector("#nav-toggle")
  .addEventListener("mouseover", function() {
    this.classList.toggle("active");
  });

【讨论】：

【解决方案3】：

悬停事件称为mouseover。

事件名称是经典的HTML DOM Events，只是没有 on 前缀。例如，使用mouseover 而不是onmouseover。

document.querySelector( "#nav-toggle" )
  .addEventListener( "mouseover", function() {
    this.classList.toggle( "active" );
  });

#nav-toggle { position: absolute; left: 50%; top: 50%; }

#nav-toggle { cursor: pointer; padding: 10px 35px 16px 0px; }
#nav-toggle span, #nav-toggle span:before, #nav-toggle span:after {
  cursor: pointer;
  border-radius: 1px;
  height: 5px;
  width: 35px;
  background: black;
  position: absolute;
  display: block;
  content: '';
}
#nav-toggle span:before {
  top: -10px; 
}
#nav-toggle span:after {
  bottom: -10px;
}

#nav-toggle span, #nav-toggle span:before, #nav-toggle span:after {
  transition: all 500ms ease-in-out;
}
#nav-toggle.active span {
  background-color: transparent;
}
#nav-toggle.active span:before, #nav-toggle.active span:after {
  top: 0;
}
#nav-toggle.active span:before {
  transform: rotate(45deg);
}
#nav-toggle.active span:after {
  transform: rotate(-45deg);
}

&lt;a id="nav-toggle" href="#"&gt;&lt;span&gt;&lt;/span&gt;&lt;/a&gt;

【讨论】：

【解决方案4】：

你需要使用mouseover事件。

document.querySelector( "#nav-toggle" )
  .addEventListener( "mouseover", function() {
    this.classList.toggle( "active" );
  });

#nav-toggle { position: absolute; left: 50%; top: 50%; }

#nav-toggle { cursor: pointer; padding: 10px 35px 16px 0px; }
#nav-toggle span, #nav-toggle span:before, #nav-toggle span:after {
  cursor: pointer;
  border-radius: 1px;
  height: 5px;
  width: 35px;
  background: black;
  position: absolute;
  display: block;
  content: '';
}
#nav-toggle span:before {
  top: -10px; 
}
#nav-toggle span:after {
  bottom: -10px;
}

#nav-toggle span, #nav-toggle span:before, #nav-toggle span:after {
  transition: all 500ms ease-in-out;
}
#nav-toggle.active span {
  background-color: transparent;
}
#nav-toggle.active span:before, #nav-toggle.active span:after {
  top: 0;
}
#nav-toggle.active span:before {
  transform: rotate(45deg);
}
#nav-toggle.active span:after {
  transform: rotate(-45deg);
}

&lt;a id="nav-toggle" href="#"&gt;&lt;span&gt;&lt;/span&gt;&lt;/a&gt;

【讨论】：