如何让这个CSS3动画显示第一帧并在动画完成后保持可见？

时间：2017-01-02 08:02:42

标签： html css css3 animation css-animations

在我的项目中，当主页打开时，它应该运行一个CSS动画，以便打开立方体的面。动画完成后，脸部应保留。所以我需要修改这段代码，因为它是面部打开然后关闭。打开后，面部应保留在屏幕上而不是关闭。

我该怎么做？

<html>

<head>
  <link href="style.css" rel="stylesheet">
  <title>Open Cube</title>
  <h1>Apertura Cubo</h1>
</head>

<body>
  <div class="sk-folding-cube">
    <div class="sk-cube1 sk-cube"></div>
    <div class="sk-cube2 sk-cube"></div>
    <div class="sk-cube4 sk-cube"></div>
    <div class="sk-cube3 sk-cube"></div>
    <div class="sk-cube5 sk-cube"></div>
    <div class="sk-cube6 sk-cube"></div>
  </div>
</body>

</html>
<Grid>
    <DataGrid x:Name="ContactsList" Margin="20" AutoGenerateColumns="False" IsReadOnly="True" CanUserResizeRows="False"
              CanUserResizeColumns="True" ColumnWidth="*" ItemsSource="{Binding Contacts, UpdateSourceTrigger=PropertyChanged, diag:PresentationTraceSources.TraceLevel=High}">
    </DataGrid>
</Grid>

更新

我需要在屏幕上首先打开图片

enter image description here

2 个答案:

答案 0 :(得分：1)

animation属性指定的内容之一是animation should repeat的次数。在您的示例中，您指定了1，但通过指定0.5，动画将在一半时间后停止。

.sk-folding-cube {
  margin: 20px auto;
  width: 40px;
  height: 40px;
  position: relative;
  -webkit-transform: rotateZ(45deg);
  transform: rotateZ(45deg);
}
.sk-folding-cube .sk-cube {
  float: left;
  width: 50%;
  height: 50%;
  position: relative;
  -webkit-transform: scale(1.1);
  -ms-transform: scale(1.1);
  transform: scale(1.1);
}
.sk-folding-cube .sk-cube:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #333;
  -webkit-animation: sk-foldCubeAngle 2.4s 0.5 linear both;
  animation: sk-foldCubeAngle 2.4s 0.5 linear both;
  -webkit-transform-origin: 100% 100%;
  -ms-transform-origin: 100% 100%;
  transform-origin: 100% 100%;
}
.sk-folding-cube .sk-cube2 {
  -webkit-transform: scale(1.1) rotateZ(90deg);
  transform: scale(1.1) rotateZ(90deg);
}
.sk-folding-cube .sk-cube3 {
  -webkit-transform: scale(1.1) rotateZ(180deg);
  transform: scale(1.1) rotateZ(180deg);
}
.sk-folding-cube .sk-cube4 {
  -webkit-transform: scale(1.1) rotateZ(270deg);
  transform: scale(1.1) rotateZ(270deg);
}
.sk-folding-cube .sk-cube5 {
  -webkit-transform: scale(1.1) rotateZ(360deg);
  transform: scale(1.1) rotateZ(360deg);
}
.sk-folding-cube .sk-cube5 {
  -webkit-transform: scale(1.1) rotateZ(360deg);
  transform: scale(1.1) rotateZ(360deg);
}
.sk-folding-cube .sk-cube2:before {
  -webkit-animation-delay: 0.3s;
  animation-delay: 0.3s;
}
.sk-folding-cube .sk-cube3:before {
  -webkit-animation-delay: 0.6s;
  animation-delay: 0.6s;
}
.sk-folding-cube .sk-cube4:before {
  -webkit-animation-delay: 0.9s;
  animation-delay: 0.9s;
}
.sk-folding-cube .sk-cube5:before {
  -webkit-animation-delay: 1.2s;
  animation-delay: 1.2s;
}
.sk-folding-cube .sk-cube6:before {
  -webkit-animation-delay: 1.5s;
  animation-delay: 1.5s;
}
@-webkit-keyframes sk-foldCubeAngle {
  0%, 10% {
    -webkit-transform: perspective(140px) rotateX(-180deg);
    transform: perspective(140px) rotateX(-180deg);
    opacity: 0;
  }
  25%,
  75% {
    -webkit-transform: perspective(140px) rotateX(0deg);
    transform: perspective(140px) rotateX(0deg);
    opacity: 1;
  }
  90%,
  100% {
    -webkit-transform: perspective(140px) rotateY(180deg);
    transform: perspective(140px) rotateY(180deg);
    opacity: 0;
  }
}
@keyframes sk-foldCubeAngle {
  0%, 10% {
    -webkit-transform: perspective(140px) rotateX(-180deg);
    transform: perspective(140px) rotateX(-180deg);
    opacity: 0;
  }
  25%,
  75% {
    -webkit-transform: perspective(140px) rotateX(0deg);
    transform: perspective(140px) rotateX(0deg);
    opacity: 1;
  }
  90%,
  100% {
    -webkit-transform: perspective(140px) rotateY(180deg);
    transform: perspective(140px) rotateY(180deg);
    opacity: 0;
  }
}
<html>

<head>
  <link href="style.css" rel="stylesheet">
  <title>Open Cube</title>
  <h1>Apertura Cubo</h1>
</head>

<body>
  <div class="sk-folding-cube">
    <div class="sk-cube1 sk-cube"></div>
    <div class="sk-cube2 sk-cube"></div>
    <div class="sk-cube4 sk-cube"></div>
    <div class="sk-cube3 sk-cube"></div>
    <div class="sk-cube5 sk-cube"></div>
    <div class="sk-cube6 sk-cube"></div>
  </div>
</body>

</html>

答案 1 :(得分：0)

将opacity的{​​{1}}进展中的100%更改为keyframes。当前设置为在最后1完成动画后隐藏帧。

请参阅下文，动画的最后阶段仍然可见：

＆＃13;
＆＃13; 
keyframes
＆＃13; 
.sk-folding-cube {
  margin: 20px auto;
  width: 40px;
  height: 40px;
  position: relative;
  -webkit-transform: rotateZ(45deg);
  transform: rotateZ(45deg);
}
.sk-folding-cube .sk-cube {
  float: left;
  width: 50%;
  height: 50%;
  position: relative;
  -webkit-transform: scale(1.1);
  -ms-transform: scale(1.1);
  transform: scale(1.1);
}
.sk-folding-cube .sk-cube:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #333;
  -webkit-animation: sk-foldCubeAngle 2.4s 1 linear both;
  animation: sk-foldCubeAngle 2.4s 1 linear both;
  -webkit-transform-origin: 100% 100%;
  -ms-transform-origin: 100% 100%;
  transform-origin: 100% 100%;
}
.sk-folding-cube .sk-cube2 {
  -webkit-transform: scale(1.1) rotateZ(90deg);
  transform: scale(1.1) rotateZ(90deg);
}
.sk-folding-cube .sk-cube3 {
  -webkit-transform: scale(1.1) rotateZ(180deg);
  transform: scale(1.1) rotateZ(180deg);
}
.sk-folding-cube .sk-cube4 {
  -webkit-transform: scale(1.1) rotateZ(270deg);
  transform: scale(1.1) rotateZ(270deg);
}
.sk-folding-cube .sk-cube5 {
  -webkit-transform: scale(1.1) rotateZ(360deg);
  transform: scale(1.1) rotateZ(360deg);
}
.sk-folding-cube .sk-cube5 {
  -webkit-transform: scale(1.1) rotateZ(360deg);
  transform: scale(1.1) rotateZ(360deg);
}
.sk-folding-cube .sk-cube2:before {
  -webkit-animation-delay: 0.3s;
  animation-delay: 0.3s;
}
.sk-folding-cube .sk-cube3:before {
  -webkit-animation-delay: 0.6s;
  animation-delay: 0.6s;
}
.sk-folding-cube .sk-cube4:before {
  -webkit-animation-delay: 0.9s;
  animation-delay: 0.9s;
}
.sk-folding-cube .sk-cube5:before {
  -webkit-animation-delay: 1.2s;
  animation-delay: 1.2s;
}
.sk-folding-cube .sk-cube6:before {
  -webkit-animation-delay: 1.5s;
  animation-delay: 1.5s;
}
@-webkit-keyframes sk-foldCubeAngle {
  0%, 10% {
    -webkit-transform: perspective(140px) rotateX(-180deg);
    transform: perspective(140px) rotateX(-180deg);
    opacity: 0;
  }
  25%,
  75% {
    -webkit-transform: perspective(140px) rotateX(0deg);
    transform: perspective(140px) rotateX(0deg);
    opacity: 1;
  }
  90%,
  100% {
    -webkit-transform: perspective(140px) rotateY(180deg);
    transform: perspective(140px) rotateY(180deg);
    opacity: 1;
  }
}
@keyframes sk-foldCubeAngle {
  0%, 10% {
    -webkit-transform: perspective(140px) rotateX(-180deg);
    transform: perspective(140px) rotateX(-180deg);
    opacity: 0;
  }
  25%,
  75% {
    -webkit-transform: perspective(140px) rotateX(0deg);
    transform: perspective(140px) rotateX(0deg);
    opacity: 1;
  }
  90%,
  100% {
    -webkit-transform: perspective(140px) rotateY(180deg);
    transform: perspective(140px) rotateY(180deg);
    opacity: 1;
  }
}
＆＃13;
＆＃13;
＆＃13;

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