为什么对单个矩形设置animation-delay属性时要写成
.spinner .line2{
animation-delay: -1.1s;
}
而不能写成
.line2{
animation-delay: -1.1s;
}
p.s.
html部分如下:
<div class="spinner">
<div class="line1"></div>
<div class="line2"></div>
<div class="line3"></div>
<div class="line4"></div>
<div class="line5"></div>
</div>
骑驴的帅小伙