.box {
　width: 100%;
　max-width: 300px;
　height: 200px;
　border-radius: 20px;
　overflow: hidden;
　position: relative;
　z-index: 1;
}
.box img {
　width: 100%;
　transition: all .3s ease;
}
.box:hover img {
　transform: scale(1.1);
}