# 图片若隐若现效果
<style>
@keyframes fadeIn{
0%{
opacity:0.2;
}
25%{
opacity:0.5;
}
50%{
opacity:0.9;
}
75%{
opacity:0.5;
}
100%{
opacity:0.2;
}
}
.logo{
animation:fadeIn 3s linear infinite
}
</style>
<img src="1.jpg" class="logo">