.wrapper {
  margin: 0 auto;
  width: 1000px;
  margin-top: 200px;
}

#question {
  font-size: 20px;
  text-align: center;
}

h1 {
  text-align: center;
}

#buttons {
  text-align:center;
}

.button {
  margin: 10px;
  width: 100px;
  height: 40px;
  background: rgb(201, 200, 200);
  border: 1px solid rgb(207, 207, 207);
  border-radius: 8px;
  color: #111;
  font-size: 20px;
  outline: none;
}

.button:hover {
  background-color: #a1d7e0;
  cursor: pointer;
}


.top {
  background-color: #eee;
  height: 200px;
  margin-bottom: 20px;
}

h1 {
  text-align: center;
  line-height: 200px;
}

.top_txt {
  text-align: center;
}

.container {
  margin: 20px auto;
  max-width: 1080px;
}

.content_item {
  display: flex;
  justify-content: center;
  padding: 20px 0;
  border-bottom: 1px solid #eee;
  border-top: 1px solid #eee;
}

.content_item img {
  width: 350px;
  height: auto;
}

.content_txt {
  padding: 10px 0 0 20px;
}

.content_txt p {
  max-width: 500px;
  padding: 10px 0;
}

.more_btn {
  background-color: rgb(199, 197, 197);
  display: inline-block;
  padding: 15px;
  border-radius: 10px;
  margin-top: 20px;
}

.more_btn a {
  color: #fff;
  font-weight: bold;
}


/* page_1.html,page_2.html,page_3.htmlページ */
.page_content {
  text-align: center;
}

.page_content h2,.page_content img,.content_inner {
  padding: 10px 0;
}

.page_content img {
  width: 500px;
  height: auto;
}

.content_inner {
  max-width: 600px;
  text-align: left;
  margin: 0 auto;
}

.btn {
  box-sizing: border-box;
  background-color: #000;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 45px;
  width: 80%;
}

.fadeIn{
animation-name:fadeInAnime;
animation-duration:1s;
animation-fill-mode:forwards;
opacity:0;
}

@keyframes fadeInAnime{
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.example6 img{
  margin-right: auto;
}