.t-midashi01 {
  position: relative;
  margin:2em 0;
  padding:0.5em 0;
  text-align:center;
}

.t-midashi01:after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 7px;
  background: -webkit-repeating-linear-gradient(-45deg, #6ad1c8, #6ad1c8 2px, #fff 2px, #fff 4px);
  background: repeating-linear-gradient(-45deg, #6ad1c8, #6ad1c8 2px, #fff 2px, #fff 4px);
}