/* aタグのリンク色 */
a {
    color: #337ab7;
}

h1{
	font-size:150%;
    margin-top: 30px;
    margin-bottom: 30px;
}

h2{
	font-size:120%;
    margin-top: 30px;
    margin-bottom: 10px;
}

#contents_area {
    line-height: 1.7em;
}
#contents_area a {
    display: inline-block;
    text-decoration: none;
    margin-right: 20px;
    margin-bottom: 5px;
}

#contents_area p {
    margin: 0;
    padding: 0;
}

.thumb-area {
  height: 100%;
  /*  margin: 2% auto;*/
  margin-right: 20px;
  margin-bottom: 25px;
  text-align: center;
}

.p-font-s{
	font-size:85%;
  	margin-left: 30px;
}
	
.thumb-area img {
  max-height: 180px !important;
  max-width: 180px !important;
  margin: 1% auto;
  border: 1px solid #aaa;
}

@media (max-width: 575px) {
  .prl-container {
    flex-direction: column; /* 画面幅が600px以下の場合、縦並びに変更 */
    align-items: flex-start; /* 左揃えに変更 */
  }

  .thumb-area {
    margin-right: auto;
    margin-left: auto;
    margin-bottom: 25px; /* 画像とテキストの間にスペースを追加 */
  }

  img {
    max-width: 100%; /* 画像の幅を100%に設定 */
  }

  ul {
       padding-left: 1em;
  }
}

.btn-area {
  width: 100%;
  margin: 2% auto;
  text-align: center;
}

.catalog,
.viewer {
  margin-left: 1em;
  padding: 0.8% 2%;
}

.index-area {
  width: 100%;
  margin: 2% auto;
}

.toggle_img {
  padding: 0 !important;
  margin: 0 0 0 0.5em !important;
  width: 100% !important;
  max-width: 20px !important;
  transform: translateY(-2px);
}

#btn1,
#btn2 {
  margin: 1%;
  background: #fff;
  border: 1px solid #bbb;
  border-radius: 5px;
  padding: 1%;
  transition: 0.2s;
}

#btn1:hover,
#btn2:hover {
  background: #eee;
}


.level-1{
    margin-left: 40px;
}
.level-2{
    margin-left: 60px;
}
.level-3{
    margin-left: 80px;
}
.level-4{
    margin-left: 100px;
}
.level-5{
    margin-left: 120px;
}
.level-6{
    margin-left: 140px;
}
.level-7{
    margin-left: 160px;
}
.level-8{
    margin-left: 180px;
}
.level-9{
    margin-left: 200px;
}
.level-10{
    margin-left: 220px;
}

@media (max-width: 575px) {
.level-1{
    margin-left: 20px;
}
.level-2{
    margin-left: 40px;
}
.level-3{
    margin-left: 60px;
}
.level-4{
    margin-left: 80px;
}
.level-5{
    margin-left: 100px;
}
.level-6{
    margin-left: 120px;
}
.level-7{
    margin-left: 140px;
}
.level-8{
    margin-left: 160px;
}
.level-9{
    margin-left: 180px;
}
.level-10{
    margin-left: 200px;
}
}