/* pages/sign.wxss */ .sign-contain { display: flex; flex-direction:column; width: 100%; height: 100%; } .signName { flex: 1; } .canvas { width: 100%; height: 100%; } .bg000{ background-color: #000; } .btn-wrap{ display: block; width:100%; height: 100rpx; margin: 20rpx 0; position: relative; } .btn-wrap button{ width: 43%; }