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首屏箭头示意向下滚动动画(有弹跳效果)

效果借鉴自:https://www.intercom.com/

见代码👇

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<style type="text/css">

@keyframes go_down_animation {
0% {
transform: scale(1, 1) translateY(0px);
}
10% {
transform: scale(1.1, 0.9) translateY(0px);
}
30% {
transform: scale(0.9, 1.1) translateY(-30px);
}
50% {
transform: scale(1.05, 0.95) translateY(0px);
}
57% {
transform: scale(1, 1) translateY(-7px);
}
64% {
transform: scale(1, 1) translateY(0px);
}
100% {
transform: scale(1, 1) translateY(0px);
}
}

.home_arrow {
opacity: 1;
}
.home_arrow_div > .home_arrow{
z-index: 3;
position: absolute;
bottom: 20px;
left: 50%;
width: 40px;
height: 40px;
transform: translateX(-50%);
transition-delay: 5s;
}

.bou {
position: absolute;
bottom: 0px;
left: 10px;
animation-duration: 4s;
animation-iteration-count: infinite;
transform-origin: center bottom;

animation-name: go_down_animation;
animation-timing-function: cubic-bezier(0.28, 0.84, 0.42, 1);
}

</style>


<body>

<div class="home_arrow home_arrow_div">
<img class="home_arrow bou" src="arrow.svg">
</div>

svg:

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<svg width="39" height="16" viewBox="0 0 39 16" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M2 2L19.5 14L37 2" stroke="#A0A0A0" stroke-width="3" stroke-linecap="round" stroke-linejoin="round"/>
</svg>