#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#2c3e50;margin-top:60px;height:100vh}.ant-card{height:80px;transition:border-color .3s ease;border:1px solid transparent}.ant-card:hover{border-color:#1890ff}