.wpcontents li a:before {content: " ";
  display: inline-block;
  width: 1rem;
  height: 1rem;
  background: url( ../images/common/btnR.svg) no-repeat center;
    background-size: auto;
  background-size: 110%;
  vertical-align: -0.1rem;
  margin-right: 0.2rem;
  background-size: 1.1rem;
  position: absolute;
  left: 0;
  top: 0.5rem;
  }