.box{
width: 620px;
height: 400px;
border: 3px solid #000;
margin: 0 auto;
}
.red,.green,.pink,.purple,.blue{
width: 100px;
height: 150px;
background-color: red;
float: left;
margin-left: 20px;
margin-top: 110px;
transform: scaleY(0.5);
transition: all 1s ease;
animation: moving 0.7s ease 1s infinite alternate both;
}
.box:hover{
animation-play-state: running;
}
.green{
background-color: green;
transition: all 1s ease;
animation: moving 1s ease 1s infinite alternate both;
}
.pink{
background-color: pink;
transition: all 1s ease;
animation: moving 1.4s ease 1s infinite alternate both;
}
.purple{
background-color: purple;
transition: all 1s ease;
animation: moving 1.7s ease 1s infinite alternate both;
}
.blue{
background-color: skyblue;
transition: all 1s ease;
animation: moving 2s ease 1s infinite alternate both;
}
@keyframes moving{
from{
height: 150px;
}
to{
height: 50px;
}
}