开发指导—利用CSS动画实现HarmonyOS动效（二）

<!-- xxx.hml -->
<div class="container">
  <div class="content"></div>
  <div class="content1"></div>
</div>

/* xxx.css */
.container {
  height: 100%;
  background-color:#F1F3F5;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
}
.content{
  width: 400px;
  height: 400px;
  /* 不建议图片长宽比为1:1 */
  background-image: url('common/images/bg-tv.jpg');
  background-size: 100%;
  background-repeat: no-repeat;
  animation: change 3s infinite;
  border: 1px solid black;
}
.content1{
  margin-top:50px;
  width: 400px;
  height: 400px;
  background-image: url('common/images/bg-tv.jpg');
  background-size: 50%;
  background-repeat: no-repeat;
  animation: change1 5s infinite;
  border: 1px solid black;
}
/* 背景图片移动出组件 */
@keyframes change{
  0%{
    background-position:0px top;
  }
  25%{
    background-position:400px top;
  }
  50%{
    background-position:0px top;
  }
  75%{
    background-position:0px bottom;
  }
  100%{
    background-position:0px top;
  }
}
/* 背景图片在组件内移动 */
@keyframes change1{
  0%{
    background-position:left top;
  }
  25%{
    background-position:50% 50%;
  }
  50%{
    background-position:right bottom;
  }
  100%{
    background-position:left top;;
  }
}

<!-- xxx.hml -->
<div class="container">
  <svg>
    <text x="300" y="300" fill="blue">
      Hello
      <animate attributeName="font-size" from="30" to="60" dur="3s" repeatCount="indefinite">
      </animate>
      <animate attributeName="fill" from="red" to="blue" dur="3s" repeatCount="indefinite">
      </animate>
      <animate attributeName="opacity" from="1" to="0.3" dur="3s" repeatCount="indefinite">
      </animate>
    </text>
    <text x="300" y="600" fill="blue">
      World
      <animate attributeName="font-size" from="30" to="60" values="30;80" dur="3s" repeatCount="indefinite">
      </animate>
      <animate attributeName="fill" from="red" to="blue"  dur="3s" repeatCount="indefinite">
      </animate>
      <animate attributeName="opacity" from="0.3" to="1" dur="3s" repeatCount="indefinite">
      </animate>
    </text>
  </svg>
</div>

<!-- xxx.hml -->
<div class="container">
  <svg fill="white" width="800" height="900">
    <path d="M300,200 h-150 a150 150 0 1 0 150 -150 z" fill="white" stroke="blue" stroke-width="5" >
    </path>
    <path fill="red" d="M-5,-5 L10,0 L-5,5 L0,0 Z"  >
      <animateMotion dur="2000" repeatCount="indefinite" rotate="auto-reverse"path="M300,200 h-150 a150 150 0 1 0 150 -150 z">
      </animateMotion>
    </path>
  </svg>
</div>

<!-- xxx.hml -->
<div class="container" style="">
    <svg>
        <line x1="90" y1="300" x2="90" y2="730" stroke-width="10" stroke="black" stroke-linecap="round">
            <animateTransform attributeName="transform" attributeType="XML" type="translate"  dur="3s" values="0;30;10;30;20;30;25;30" keyTimes="0;0.3;0.5;0.7;0.8;0.9;1.0;1.1"
                              fill="freeze">
            </animateTransform>
        </line>
        <circle cx="500" cy="500" r="50" stroke-width="15" fill="red" stroke="#e70d0d">
            <animateTransform attributeName="transform" attributeType="XML" type="rotate"  dur="3s" values="0;30;10;30;20;30;25;30" keyTimes="0;0.3;0.5;0.7;0.8;0.9;1.0;1.1" fill="freeze">
            </animateTransform>
            <animateTransform attributeName="transform" attributeType="XML" type="scale"  dur="6s" values="1;1;1.3" keyTimes="0;0.5;1" fill="freeze"></animateTransform>
            <animateTransform attributeName="transform" attributeType="XML" type="translate"  dur="9s" values="0;0;300 7" keyTimes="0;0.6;0.9" fill="freeze"></animateTransform>
        </circle>
        <line x1="650" y1="300" x2="650" y2="600" stroke-width="20" stroke="blue" stroke-linecap="round">
            <animateTransform attributeName="transform" attributeType="XML" type="translate"  dur="9s" values="0;0;0 800" keyTimes="0;0.6;1" fill="freeze"></animateTransform>
        </line>
    </svg>
</div>

/* xxx.css */
.container {
  flex-direction: column;
  align-items: center;
  width: 100%;
  height: 100%;
  background-color: #F1F3F5;
}