怎么新建MySQL数据库

实现效果

X轴Y轴在一个矩形内移动

做斜线运动

.ball { position: absolute; animation: animX 2s linear infinite alternate, animY 2s linear infinite alternate } @keyframes animX{ 0% {left: 0px;} 100% {left: 500px;} } @keyframes animY{ 0% {top: 0px;} 100% {top: 300px;} }

设置动画延时

设置Y轴延时为动画时长的一半, 运动轨迹变成菱形

.ball { animation: animX 2s linear 0s infinite alternate, animY 2s linear -1s infinite alternate }

设置三次贝塞尔曲线

.ball { animation: animX 2s cubic-bezier(0.36, 0, 0.64, 1) -1s infinite alternate, animY 2s cubic-bezier(0.36, 0, 0.64, 1) 0s infinite alternate }

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缩小放大

为了看起来有立体感添加scale属性,scale动画应该是X轴和Y轴的时间总和

.ball1 { animation: animX 2s cubic-bezier(0.36, 0, 0.64, 1) -1s infinite alternate, animY 2s cubic-bezier(0.36, 0, 0.64, 1) 0s infinite alternate, scale 4s cubic-bezier(0.36, 0, 0.64, 1) 0s infinite alternate; } @keyframes scale { 0% { transform: scale(0.7) } 50% { transform: scale(1) } 100% { transform: scale(0.7) } }