@charset "UTF-8";

/* ドキュメントの標準スタイルを定義する CSS
----------------------------------------------------*/

html {
    background-color: #ffffff;
    color: #333333;
    font-size: 16px;
    font-family: "Open Sans", "Clear Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

body {
    display: block;
    margin: 0;
    padding: 0;
    height: auto;
    color: rgb(51, 51, 51);
    font-size: 1rem;
    line-height: 1.6;
    overflow-x: hidden;
    background: inherit;
}

article, section {
    max-width: 860px;
    margin: 0 auto;
    padding: 30px 30px 10px;
    height: auto;
    width: inherit;
    word-break: normal;
    word-wrap: break-word;
    white-space: normal;
    overflow-x: visible;
}

h1, h2, h3, h4, h5, h6 {
    margin: 1rem 0;
    padding-bottom: 0.3em;
    width: inherit;
    font-weight: bold;
    line-height: 1.4;
    border-bottom: 1px solid rgb(238, 238, 238);
    cursor: text;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.8rem; }
h3 { font-size: 1.6rem; }
h4 { font-size: 1.4rem; }
h5 { font-size: 1.2rem; }
h6 { font-size: 1rem; }

p {
    display: block;
    width: inherit;
    margin: 0.8em 0px;
    white-space: normal;
}

ul, ol {
    display: block;
    padding-inline-start: 40px;
    padding-left: 30px;
    margin: 0.8rem 0px;
}

ul {
    list-style-type: disc;
}

ol {
    list-style-type: decimal;
}

li {
    margin: 0px;
}

a {
    margin:0;
    padding:0;
    vertical-align: baseline;
    text-decoration: underline;
    color: rgb(65, 131, 196);
    cursor: pointer;
}
a:visited  {
    color: rgb(85, 26, 139);
}

img {
    margin: auto;
    max-width: 100%;
    display: block;
}

figcaption {
    text-align: center;
}

table {
    margin-left: auto;
    margin-right: auto;
}

table, th, td {
    border: 1px solid black;
    border-collapse: collapse;
    border-radius: 5%;
}

table :is(th, td) {
    padding: 5px;
}

#title {
    font-size: 1.4rem;
    font-weight: bold;
  }

ol {
    counter-reset: counter;
    list-style-type: none;
}

#index {
    width: 600px;
    height: 540px;
    padding: 20px;
    border: 1px solid gray;
    background-color: rgb(210, 232, 247);
    box-sizing: border-box;
  }
  #index ol li {
    margin-top: 2px;
    margin-left: 50px;
  }
  #index ol li::before {
    counter-increment: counter;
    content: counters(counter, '.') ' ';
  }
  #index ol li > ol {
    padding-left: 0;
  }

details[open] .open {
    display: none ;
}

details:not([open]) .close {
    display: none ;
}

.click span {
    cursor: pointer;
    color: blue;
}

/* スマートフォン用の適用スタイル
----------------------------------------------------*/
@media only screen and (max-width: 768px) {
  body {
    padding-left: 0px; padding-right: 0px; }
}

/* 印刷用スタイル
----------------------------------------------------*/
@media print {

}