yapi/client/containers/Project/Interface/InterfaceCol/InterfaceColMenu.scss

.col-list-tree {
  .ant-tree-node-content-wrapper {
    width: calc(100% - 24px);
  }
  .menu-title {
    display: flex;
    justify-content: space-between;
    .case-delete-icon{
      display: none;
    }
  }
  .menu-title:hover {
    .case-delete-icon {
      display: block;
    }
  }
}