.login100-more {
  background-repeat: no-repeat;
  background-position: center;
  background-size: auto;
  width: calc(100% - 520px);
  position: relative;
  z-index: 1;
}

.login100-more::before {
  content: "";
  display: block;
  position: absolute;
  z-index: -1;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: #e8519e;
  background: -webkit-linear-gradient(bottom, #e8519e, #c77ff2);
  background: -o-linear-gradient(bottom, #e8519e, #c77ff2);
  background: -moz-linear-gradient(bottom, #e8519e, #c77ff2);
  background: linear-gradient(bottom, #e8519e, #c77ff2);
  opacity: 0.8;
}