关键帧动画无法在Safari

Question

我使用css创建了动画，下面是

的代码

.div
{
	position:relative;
	width:250px;
	height:150px;
	background-color:gray;
}
    .div:before {
        content: "";
        position: absolute;
        top: 0px;
        left: 0px;
        width: 100px;
        height: 100px;
        animation-name: drawline;
        animation-duration: 2s;
        -webkit-animation-name: drawline;
        -webkit-animation-duration: 2s;
        border: 1px solid #fff;
    }
@-webkit-keyframes drawline
{
	0%
	{
		width:0px;
	}
	100%
	{
		width:100px;
	}
}
@keyframes drawline
{
	0%
	{
		width:0px;
	}
	100%
	{
		width:100px;
	}
}

<div class="div"></div>

这个动画正在使用chrome但是没有在safari上工作，因为我已经给了动画：之前。我该怎么办？请帮忙。

Answer 1

尝试将默认width: 100px;设置为width: 0px;。显然Safari在开始动画形式时并不高兴＃0; 0％＆＃34;。你可以尝试这样的事情：

＆＃13;

＆＃13;

.div
{
	position:relative;
	width:250px;
	height:150px;
	background-color:gray;
}
    .div:before {
        content: "";
        position: absolute;
        top: 0px;
        left: 0px;
        width: 100px;
        height: 100px;
        animation-name: drawline;
        animation-duration: 2s;
        -webkit-animation-name: drawline;
        -webkit-animation-duration: 2s;
        border: 1px solid #fff;
    }
@-webkit-keyframes drawline
{
	0% {
    opacity: 0; 
    width: 100px;
  }
  1% {
    opacity: 1;
    width: 0;
  }
  100% {
    width: 100px;
  }
}

@keyframes drawline {
  0% {
    opacity: 0; 
    width: 100px;
  }
  1% {
    opacity: 1;
    width: 0;
  }
  100% {
    width: 100px;
  }
}

＆＃13;

<div class="div"></div>

＆＃13;

＆＃13;

＆＃13;