.sub_contribution_page {
  padding: 30px 0 90px;
}

.sub_contribution_page_main {
  margin-top: 40px;
}

.sub_contribution_page_main .article {
  float: left;
  width: 70%;
}

.sub_contribution_page_main .aside {
  float: right;
  width: 25.5%;
}

@media (max-width: 768px) {
  .sub_contribution_page {
    padding: 30px 0 50px;
  }

  .sub_contribution_page_main .article {
    width: 100%;
  }

  .sub_contribution_page_main .aside {
    width: 100%;
    margin-top: 30px;
  }
}