body {
  margin: 0;
  font-family: 'Noto Sans JP', sans-serif;
}

a {
color: #165e83;
}

hr {
  margin: 10px 30px;
}

.header {
  background-color: #2C2F33;
  height: 80px;
}

@media only screen and (max-width: 768px) {
  .header-logo img {
    border-radius: 30px;
    margin: 10px 10px 10px 10px;
    float: left;
  }

  .header-text img {
    height: 52px;
    margin: 14px 0px 13px 0px;
  }
}

@media only screen and (min-width: 769px) {
  .header-logo img {
    border-radius: 30px;
    margin: 10px 13px 10px 15px;
    float: left;
  }

  .header-text img {
    height: 54px;
    margin: 13px 0px 13px 0px;
  }
}

.main {
  color: #333333;
}
.main-img {
  text-align: center;
  margin: 40px 10px 20px 10px;
}

h2 {
  padding: 0.5em;/*文字周りの余白*/
  color: #010101;/*文字色*/
  background: #c9c9c9;/*背景色*/
  border-bottom: solid 3px #2C2F33;/*下線*/
}

.content p {
  margin: 5px 10px;
}
.footer {
  text-align: center;
}