combination/miniprogram/packageAPI/pages/page/canvas/canvas.wxss

.canvas-element-wrapper {
  display: block;
  margin-bottom: 50px;
}
.canvas-element {
  width: 100%;
  height: 250px;
  background-color: #ffffff;
}
.canvas-buttons {
  padding: 15px 25px 5px;
  width: 100%;
  height: 330px;
  box-sizing: border-box;
}
.canvas-button {
  float: left;
  line-height: 2;
  width: 150px;
  margin: 8px 11px;
}