body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #00082f;
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1 {
    color: #ffffff;
    text-align: center;
    padding: 20px 0;
}

h2 {
    background-color: #ffffff;
    border-left-width: 20px;
    border-bottom-style:dotted;
    border-color:#fd7231;
    color:#000000;
    margin: 0;
    padding: 3px;
}

h3 {
    background-color: #ffffff;
    border-left-style: solid;
    border-left-width: 20px;
    border-bottom-style: solid;
    border-color:#fd7231;
    color:#000000;
    margin: 0;
    padding: 3px;
}

h4 {
    padding-left: 20px;
    margin:0;
}

h5 {
    text-align:center;
    font-weight: bolder;
    margin:0;
    font-size: 1.5em;
}

p {
    padding-left: 20px;
}

Ol {
    list-style-type: none
}
li {
    padding: 3px;
}

a {
    text-decoration:none;
}
.content-container {
    max-width: 600px;
    margin: 20px;
    text-align: left;
    color:#000000;
}

.code-container {
    position: relative;
    border: 1px solid #ddd; 
    border-radius: 3px;
}

pre {
    background-color: #000000;
    color:#ffffff;
    padding: 16px;
    overflow: auto;
    font-family: 'Courier New', monospace;
    line-height: 1.5;
    font-size: 0.9em;
}

button {
    position: absolute;
    top: 0;
    right: 0;
    padding: 5px 10px;
    background-color: #fd7231;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #fd7231;
}

.media-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 20px;
    max-width: 100%; /* Add this line */
}

.media-title {
    font-size: 0.8em;
    margin-bottom: 10px;
}

.div-p,
.div-img,
.div-video,
.div-table,
.div-code,
.div-links,
.div-question,
.div-answer,
.div-procedure,
.div-procedure-links {
    width: 80%; /* Adjust this to change the width */
    margin-left: auto;
    margin-right: auto;
    margin-top: 5px;
    margin-bottom: 5px;
    padding: 10px;
    border-radius: 10px;
    border: medium solid #cacaca;
    background-color: #eeeeee;   
}



img, video {
    width: 100%;
    height: auto;  /* Add this */
}

dt {
    font-size: 1.2em;
    font-weight: bolder;
    text-indent: 3%;
}
table {
    width: 100%;
    margin: 10px auto;
    border-collapse: collapse;
    background: #dfdfdf;
    border: 4px solid #000000;
  }
  
  thead {
    text-align:center;
    background: #143351;
    color: #ffffff;
  }
  
  tr td {
    border: 1px solid #000000;
    padding: 8px;
    text-align: left;
    word-break: break-word;
    overflow-wrap: break-word;
  }
  
  tr:nth-child(even) {
    background-color: #f2f2f2;
  }

/* トップページ */
.toppage-h2{
    width: 90%; /* Adjust this to change the width */
    background-color: transparent;
    border-left-width: 20px;
    color:#fdfdfd;
    border-bottom-style:none;
    border-color:#fd7231;
    margin: 0;
    padding: 3px;
}

.toppage-p{
    width: 90%; /* Adjust this to change the width */
    background-color: transparent;
    border-left-width: 20px;
    color:#fdfdfd;
    padding-left: 20px;
    margin-left: 1em;
    padding: 3px;
}

.div-category_link {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    width: 90%; /* Adjust this to change the width */
    margin-left: auto;
    margin-right: auto;
    margin-top: 5px;
    margin-bottom: 5px;
    padding: 10px;
    border-radius: 10px;
    border: medium solid #cacaca;
    background-color: #eeeeee;
}

.link_item {
    width: 25%; /* Adjust this to change the width */
    box-sizing: border-box;
    border-radius: 10px;
    border: medium solid #cacaca;
    background-color: #143351;
    color: #ddd;
    text-align: center;
}

.link_item a{
    color: #eeeeee;
    text-decoration: none;
}

.div-toppage_link {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    width: 90%; /* Adjust this to change the width */
    margin-left: auto;
    margin-right: auto;
    margin-top: 5px;
    margin-bottom: 5px;
    padding: 10px;
    border-radius: 10px;
    border: medium solid #cacaca;
    background-color: #eeeeee;
}

.category {
    width: 50%; /* Adjust this to change the width */
    box-sizing: border-box;
    border-radius: 10px;
    border: medium solid #cacaca;
    background-color: #143351;
}
.category h2{
    text-align: center;
    background-color: rgba(0, 0, 0, 0.5);
}

.category a{
    color: #eeeeee;
    text-decoration: none;
}

/* カテゴリーページ */

.div-thumbnail_link {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    width: 80%; /* Adjust this to change the width */
    margin-left: auto;
    margin-right: auto;
    margin-top: 5px;
    margin-bottom: 5px;
    padding: 10px;
    border-radius: 10px;
    border: medium solid #cacaca;
    background-color: #eeeeee;
}

.item {
    box-sizing: border-box;
}