@import url("https://fonts.googleapis.com/css2?family=M+PLUS+1p:wght@300;400;500;700&display=swap");
.edu .edu-child-header {
  background-image: url("../img/mv-sp.jpg");
}
@media screen and (min-width: 640px) {
  .edu .edu-child-header {
    background-image: url("../img/mv.jpg");
  }
}