.note4{
  color: #696969;
  margin: 2em 0;
  font-weight: bold;
  border: solid 1px #e6e6e6;
  padding: 0.3em 1em 2em 1em;
  box-shadow:2px 2px 0 rgba(0,0,0,.1);
}
.sen4{
  background-color: #fff;
  background-image:
  linear-gradient(90deg, rgba(237, 119, 128, 0) 0%, rgba(237, 119, 128, 0) 50%, #fff 0%, #fff 100%), linear-gradient(180deg, rgba(100, 100, 100, 0) 0%, rgba(100, 100, 100, 0) 97.5%, #646464 100%);
  background-size: 8px 100%,100% 2em;
  line-height: 2em;
  padding: 2em 1em 0.2em 1em;
}