漂亮的div鼠标悬浮样式 

.card {
 width: 190px;
 height: 254px;
 background-image: linear-gradient(163deg, #00ff75 0%, #3700ff 100%);
 border-radius: 20px;
 transition: all .3s;
}

.card2 {
 width: 190px;
 height: 254px;
 background-color: #1a1a1a;
 border-radius:;
 transition: all .2s;
}

.card2:hover {
 transform: scale(0.98);
 border-radius: 20px;
}

.card:hover {
 box-shadow: 0px 0px 30px 1px rgba(0, 255, 117, 0.30);
}



<div class="card">
  <div class="card2">
  </div>
</div>