CSS firefox 中的变换旋转像素问题

Question

我正在尝试使用变换旋转创建摆动按钮属性，它在 Opera 和 chrome 浏览器中工作正常，但在 Firefox 中它在按钮的边框中产生奇怪的像素问题：

我的 css 按钮和摆动关键帧代码

.RedButton {
  background-color: #bc0000;
  border-radius: 7px;
  border: 1px solid #bc0000;
  display: inline-block;
  cursor: pointer;
  color: #fff !important;
  font-family: Arial;
  font-size: 30px;
  font-weight: bold;
  padding: 7px 24px;
  text-decoration: none;
  margin-top: 15px;
  animation: swing 5s infinite;
  -moz-animation: swing 5s infinite;
  transition: 0.2s;
  -moz-transition: 0.2s;
}

@-moz-keyframes swing {
  20%,
  60% {
    -moz-transform: rotate(5deg);
  }
  40%,
  80% {
    -moz-transform: rotate(-5deg);
  }

  100% {
    -moz-transform: rotate(0deg);
  }
}

@keyframes swing {
  20%,
  60% {
    transform: rotate(5deg);
  }
  40%,
  80% {
    transform: rotate(-5deg);
  }
  100% {
    transform: rotate(0deg);
  }
}

<div class="RedButton">Get Started Now!</div>

我是不是漏掉了什么？

Answer 1

backface-visibility 似乎根据这个 SO 线程来完成工作：css transform, jagged edges in chrome

.RedButton {
   -webkit-backface-visibility: hidden;
   -moz-backface-visibility: hidden;
   -ms-backface-visibility: hidden;
   backface-visibility: hidden;
   // ...
}

如果这不起作用，请尝试：outline: 1px solid transparent;

Answer 2

添加一个小阴影使其看起来更好：

.RedButton {
  background-color: #bc0000;
  border-radius: 7px;
  border: 1px solid #bc0000;
  display: inline-block;
  cursor: pointer;
  color: #fff ;
  font-family: Arial;
  font-size: 30px;
  font-weight: bold;
  padding: 7px 24px;
  text-decoration: none;
  margin-top: 15px;
  animation: swing 5s infinite;
  box-shadow: 0 0 1px #bc0000;
}


@keyframes swing {
  20%,
  60% {
    transform: rotate(5deg);
  }
  40%,
  80% {
    transform: rotate(-5deg);
  }
}

<div class="RedButton">Get Started Now!</div>

CSS firefox 中的变换旋转像素问题

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