@media screen and (min-width: 1261px) {
  #primary #content .content-container {
    width: 1180px;
    margin: 60px auto 0;
  }
  #primary #content .content-container .post-entry-content {
    width: 100%;
  }
  #primary #content .content-container .entry-content {
    width: 780px;
    flex: 1 0 780px;
  }
  #primary #content .content-container .post_content {
    width: 100%;
  }
}