G+左侧边栏图片...

360px高度

.M8jNpf {
  overflow: visible !important;
}

.M8jNpf::before {
  position: absolute;
  content: url('https://lh6.googleusercontent.com/-KK4uX4DzKDs/UcsJhmwGBtI/AAAAAAAASA8/gpFUyCTqV9Q/w219-h360-no/tsukiko_small.gif');
  width: 219px;
  height: 360px;
  top: 0px;
  right: -219px;
}

原始720px高度

.M8jNpf {
  overflow: visible !important;
}

.M8jNpf::before {
  position: absolute;
  content: url('https://lh4.googleusercontent.com/-aEGSMUMxPqk/UcsBon1jYoI/AAAAAAAAR_c/uQBGzA7ZfOc/w438-h720-no/%255BCASO%2526SumiSora%255D%255BHenneko%255D%255B02%255D%255Bx264_aac%255D%2528F6FC968D%2529.gif');
  width: 438px;
  height: 720px;
  top: 0px;
  right: -438px;
}