求助，uniapp h5页面 软键盘 弹出，底部有空白，怎么解决

最外层元素是

.page {
position: fixed;
width: 100%;
left: 0;
right: 0;
top: 0;
bottom: 0;
overflow: hidden;
background-image: url('@/static/images/home/bg.jpg') !important;
background-size: cover;
}