动画取消悬停效果

Question

我已经为登录页面上的菜单设置了一个动画按钮，因此它会逐渐淡入视图，我已经很好地工作了。但是，我也希望它淡化（不透明度1到不透明度.6），但添加动画似乎取消了。

有人知道如何解决这个问题吗？

HTML：

<button class="menu-button animated fadeInDown" id="open-button">Open Menu</button>

CSS：

.animated {
  -webkit-animation-duration: 1s;
  animation-duration: 1s;
  -webkit-animation-fill-mode: both;
  animation-fill-mode: both;
}

@-webkit-keyframes fadeInDown {
  0% {
    opacity: 0;
    -webkit-transform: translate3d(0, -100%, 0);
            transform: translate3d(0, -100%, 0);
  }

  100% {
    opacity: 1;
    -webkit-transform: none;
            transform: none;
  }
}

@keyframes fadeInDown {
  0% {
    opacity: 0;
    -webkit-transform: translate3d(0, -100%, 0);
            transform: translate3d(0, -100%, 0);
  }

  100% {
    opacity: 1;
    -webkit-transform: none;
            transform: none;
  }
}

.fadeInDown {
  -webkit-animation-name: fadeInDown;
          animation-name: fadeInDown;
}

.menu-button {
    position: fixed;
    z-index: 1000;
    margin: 1em;
    padding: 0;
    width: 2.5em;
    height: 2.25em;
    border: none;
    text-indent: 2.5em;
    font-size: 1.5em;
    color: transparent;
    background: transparent;
}

.menu-button::before {
    position: absolute;
    top: 0.5em;
    right: 0.5em;
    bottom: 0.5em;
    left: 0.5em;
    background: -webkit-linear-gradient(#373a47 20%, transparent 20%, transparent 40%, #373a47         40%, #373a47 60%, transparent 60%, transparent 80%, #373a47 80%);
    background: linear-gradient(#373a47 20%, transparent 20%, transparent 40%, #373a47 40%,             #373a47 60%, transparent 60%, transparent 80%, #373a47 80%);
    content: '';
}

.menu-button:hover {
    opacity: 0.6;
}

JSFiddle here

Answer 1

问题是由animation-fill-mode属性和指定的both的值引起的。

• 删除animation-fill-mode属性

• 使用班级.animated

为不透明度应用合适的过渡效果

实施例

.animated {
    -webkit-animation-duration: 1s;
    animation-duration: 1s;
    transition: opacity 0.5s;
}
@-webkit-keyframes fadeInDown {
    0% {
        opacity: 0;
        -webkit-transform: translate3d(0, -100%, 0);
        transform: translate3d(0, -100%, 0);
    }
    100% {
        opacity: 1;
        -webkit-transform: none;
        transform: none;
    }
}
@keyframes fadeInDown {
    0% {
        opacity: 0;
        -webkit-transform: translate3d(0, -100%, 0);
        transform: translate3d(0, -100%, 0);
    }
    100% {
        opacity: 1;
        -webkit-transform: none;
        transform: none;
    }
}
.fadeInDown {
    -webkit-animation-name: fadeInDown;
    animation-name: fadeInDown;
}
.menu-button {
    position: fixed;
    z-index: 1000;
    margin: 1em;
    padding: 0;
    width: 2.5em;
    height: 2.25em;
    border: none;
    text-indent: 2.5em;
    font-size: 1.5em;
    color: transparent;
    background: transparent;
}
.menu-button::before {
    position: absolute;
    top: 0.5em;
    right: 0.5em;
    bottom: 0.5em;
    left: 0.5em;
    background: -webkit-linear-gradient(#373a47 20%, transparent 20%, transparent 40%, #373a47 40%, #373a47 60%, transparent 60%, transparent 80%, #373a47 80%);
    background: linear-gradient(#373a47 20%, transparent 20%, transparent 40%, #373a47 40%, #373a47 60%, transparent 60%, transparent 80%, #373a47 80%);
    content:'';
}
.menu-button:hover {
    opacity: 0.6;
}

<button class="menu-button animated fadeInDown" id="open-button">Open Menu</button>