ずらした斜線背景と背景色

HTML

<a href=""><span>私たちについて</span></a>

CSS

a {
  display: block;
  position: relative;
  color: #333;
  text-decoration: none;
}

a span {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  padding: 30px 10px;
  width: 260px;
  font-size: 18px;
  font-weight: 700;
  background-color: #90be70;
  z-index: 2;
}

a::before {
  content: '';
  position: absolute;
  bottom: -5px;
  right: -5px;
  width: 100%;
  height: 100%;
  background-image: repeating-linear-gradient(-45deg, #2b550e 0px, #2b550e 2px, rgba(0 0 0 / 0) 0%, rgba(0 0 0 / 0) 50%);
  background-size: 8px 8px;
  z-index: 1;
}