body {
  line-height: 2.40;
  letter-spacing: 0.22rem;
  padding-top: 3.2rem;

  font-family: 'Noto Sans JP', sans-serif;
}

textarea {
  height: 10em;
}

nav {
  line-height: 1.20;
}
nav > div {
  margin-top: initial;
  margin-bottom: initial;
}

.container {
  max-width: 720px!important;
}

.navbar-light .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.8);
}

.navbar-light .navbar-brand {
  color: rgba(255, 255, 255, 0.8);
}

.navbar-light .navbar-nav .nav-link.disabled {
  color: rgba(150, 150, 150, 0.8);
}

.bg-opacity {
  background: rgba(0, 0, 0, 0.6);
}

.app-store-img {
  max-width: 120px;
}

.h1, h1 {
  font-size: 1.50rem;
  background: #D0D0D0;/*背景色*/
  margin-top: 1.3rem;
  margin-bottom: 1.3rem;
}

.h2, h2 {
  font-size: 1.40rem;
  border-bottom: solid 3px black;
  margin-top: 1.2rem;
  margin-bottom: 1.2rem;
}

.h3, h3 {
  font-size: 1.30rem;
  background: #E0E0E0;
  margin-top: 1.1rem;
  margin-bottom: 1.1rem;
}

.h4, h4 {
  font-size: 1.20rem;
  border-bottom: solid 1px black;
}

.h5, h5 {
  font-size: 1.10rem;
}

.h6, h6 {
  font-size: 1.00rem;
}