body {
  font-family: "Noto Sans JP", "Arial", "sans-serif";
  line-height: 1.6;
  margin: 0;
  padding: 0;
  background-color: #B2D380;
  align-items: center;
    
}


header {
    text-align: center;
    padding: 0;
    margin: 0;
}

header img {
    width: 100%;
    height: auto;
}

main {
    padding: 20px;
}

h3 {
  font-family: "Kaisei Opti";
  position: relative;
  background: #92bc32;
  color: white;
  padding: 2px 5px 2px 45px;
  font-size: 20px;
  border-radius: 0 10px 10px 0;
}

h3:before {
  display: inline-block;
  line-height: 40px;
  position: absolute;
  padding: 0em;
  color: white;
  background: #92bc32;
  font-weight: 900;
  width: 40px;
  text-align: center;
  height: 40px;
  line-height: 40px;
  left: -0.35em;
  top: 50%;
  -webkit-transform: translateY(-50%);
  transform: translateY(-50%);
  border: solid 3px white; 
  border-radius: 50%;
}


h3.iphone:before {
  font-family: "Font Awesome 5 Free";
  content: "\f3cd";
}

h3.question:before {
  font-family: "Font Awesome 5 Free";
  content: "\3f";
}

h3.event:before {
  font-family: "Font Awesome 5 Free";
  content: "\f073";
}


ol, ul {
    padding-left: 20px;
    background-color: #fff;
    border-radius: 8px;
    padding: 15px;
    padding-left: 10%;
    margin-bottom: 20px;
}

ol li, ul li {
    width: 95%;
  　margin-left: 10%;
    margin-bottom: 10px;
}

p {
    margin: 0 0 10px;
}

.highlight{
  background:linear-gradient(transparent 50%, #c3df9a 50%);
  font-family: "Kaisei Opti";
}

.gaiyou
{
  font-family: "Kaisei Opti";
}

@media (max-width: 600px) {
    body {
        padding: 0px;
    }

    header {
        padding: 0;
    }

    main {
        padding: 10px;
    }

    ol, ul {
        padding-left: 10%;
    }
}

#button-container{
  text-align:center;
}