.lines {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  max-width: 1030px;
  margin: 0 auto;
}

.lines__item {
  position: absolute;
  top: 0;
  height: 100%;
  width: 1px;
  opacity: .3;
  background: linear-gradient(360deg, rgba(255,255,255,0) 0, #616161 13.67%, #2e2e2e 47.21%, #949494 85%, #fff 100%)
}

.lines__item--1 {
  left: 8.5%
}

.lines__item--2 {
  left: 25%
}

.lines__item--3 {
  left: 41.7%
}

.lines__item--4 {
  left: 58.4%
}

.lines__item--5 {
  left: 75%
}

.lines__item--6 {
  left: 91.5%
}