animation 动画

动画常用属性参照https://www.w3school.com.cn/css3/css3_animation.asp

1.平移、旋转、缩放

        @keyframes move {
            0% {
                transform: rotate(0deg);
            }
            25% {
                transform: translate(440px, 0px);
            }
            50% {
                transform: rotate(288deg);
            }
            70% {
                transform:rotate(-299deg);
            }
            100% {
                transform: scale(.5)
            }
        }

        .first {
            width: 100px;
            height: 100px;
            background: red;

            /* 定义动画名称 */
            animation-name: move;
            /* 动画播放时间 */
            animation-duration: 3s;
            animation-iteration-count: infinite;
        }

    <div class="first">
        平移
    </div>

 

 

2.水波纹

        .wave {
            margin: 20px auto;
            width: 100px;
            height: 100px;
            background: lightcyan;
            position: relative;
        }

        .wave .point {
            position: absolute;
            width: 4px;
            height: 4px;
            left: 50%;
            top: 50%;
            border-radius: 50%;
            transform: translate(-50%, -50%);
            background: red;
        }

        .wave div[class^='circle'] {
            position: absolute;
            width: 8px;
            height: 8px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            box-shadow: 0 0 12px #009dfd;
            border-radius: 50%;

            animation-name: wave;
            animation-duration: 1.2s;
            animation-iteration-count: infinite;
            animation-timing-function: linear;
        }

        /* 设置动画延迟 */
        .wave .circle2 {
            animation-delay: 0.4s;
        }

        .wave .circle3 {
            animation-delay: 0.8s;
        }

        @keyframes wave {
            0% {}

            30% {
                width: 30px;
                height: 30px;
                opacity: 1;
            }

            60% {
                width: 50px;
                height: 50px;
                opacity: .7;
            }

            100% {
                width: 75px;
                height: 75px;
                opacity: 0.1;
            }
        }

    <div class="wave">
        <div class="point"></div>
        <div class="circle1"></div>
        <div class="circle2"></div>
        <div class="circle3"></div>
    </div>

 

 

3.移动+缩放

        .three {
            width: 100px;
            height: 100px;
            background: blue;
            /* margin: 20px auto; */
            position: relative;

            animation: scaleThree 2s linear infinite, moveThree 2s linear infinite;
        }
        @keyframes moveThree {
            0% {
            }
            100% {
                transform: translate(440px, 0px);
            }
        }
        @keyframes scaleThree {
            0% {
            }
            100% {
                transform: scale(2);
            }
        }


    <div class="three">
        移动+缩放
    </div>