用更少的循环优化css？

我试图通过在每次迭代中延迟动画几秒来找出应用级联样式效果的人:

.stashCard {
    background-color:white;
}

.in(@delay) {
    -webkit-animation: swing-in-left-bck .6s cubic-bezier(.175, .885, .32, 1.275) @delay both;
    animation: swing-in-left-bck .6s cubic-bezier(.175, .885, .32, 1.275) @delay both
}

.out(@delay) {
    -webkit-animation: fade-out .2s ease-out @delay both;
    animation: fade-out .2s ease-out @delay both
}

.baseKid {
    width: 50px;
    height: 50px;
    display: inline-block;
}


.selected
{
    .kid();
    color:yellow;
}

.kid {
    .out(0s);
    .baseKid();
}
.stashCard:hover .kid {
    .in(0s);
    .baseKid();
}

.stashCard:hover .kid.selected {
    .in(0s);
    .baseKid();
}
.stashCard:hover .kid2.selected {
    .in(0.05s);
    .baseKid();
}

.stashCard:hover .kid2 {
    .in(0.05s);
    .baseKid();
}

.stashCard:hover .kid3.selected {
    .in(0.1s);
    .baseKid();
}

.stashCard:hover .kid3 {
    .in(0.1s);
    .baseKid();
}

.hover {
    -webkit-animation: text-shadow-drop-center .6s both;
    animation: text-shadow-drop-center .6s both
}
.unhover {
    -webkit-animation: untext-shadow-drop-center .6s both;
    animation: untext-shadow-drop-center .6s both
}

这就是我应用它的方式:

export const PopupMenu = (props: InputProps) => {
    return 

        = 0 ? "selected kid" : "kid"}  OnClick={props.onClick} icon="sentiment_very_satisfied" tip="Real actors" />
        = 0 ? "selected kid2" : "kid2"} OnClick={props.onClick} icon="music_video" tip="Great audio quality" />
        = 0 ? "selected kid3" : "kid3"} OnClick={props.onClick} icon="photo_camera" tip="Great picture quality" />
    
;
}

显然这是低效的,需要大量的复制+粘贴,有没有一种方法可以让我可以添加尽可能多的投票选项,少可以写出css,它将迭代所有子组件并应用正确的偏移开始时间？

您可以使用循环来实现它:

.in(@delay) {
    -webkit-animation: swing-in-left-bck .6s cubic-bezier(.175, .885, .32, 1.275) @delay both;
    animation: swing-in-left-bck .6s cubic-bezier(.175, .885, .32, 1.275) @delay both
}

.out(@delay) {
    -webkit-animation: fade-out .2s ease-out @delay both;
    animation: fade-out .2s ease-out @delay both
}

.baseKid {
    width: 50px;
    height: 50px;
    display: inline-block;
}


.loop(@counter) when (@counter > 0) {
  .loop((@counter - 1));    // next iteration
  .kid@{counter} {
    .in(0.05s * (@counter - 1));
    .baseKid();
  }
  .kid@{counter}.seleted {
    width: (10px * @counter); // code for each iteration  
  }
}

.stashCard:hover {
  .loop(5); // launch the loop  
}