/* 中央枠 */
.wrap {
    width: 750px;
    margin:10px auto 0 auto;
    background-color:whitesmoke;
    min-height: 100vh;
    padding: 20px;
    font-family:
      "Yu Gothic",
      "Hiragino Kaku Gothic ProN",
      "Meiryo",
      "Noto Sans JP",
      sans-serif;
    font-size:larger;
    font-weight:bold;
    line-height:1.3;
}

/* 左問題枠 */
.left{
    float:left;
    width:568px;
}

/* 右答枠 */
.right{
    float:left;
    width:182px;
    text-align:right;
}

/* 問題番号枠 */
.number{
    float:left;
    width:25px;
}

/* 問題本文枠 */
.problem{
    float:left;
    width:535px;
    padding-right:8px;
}

/* 答えの文字幅 */
.answer1{
    display:inline-block;
    width:8em;
    text-align:left;
         padding-left:2px;
    cursor:pointer;
    user-select:none;
    white-space:pre;
}

.answer2{
    display:inline-block;
    width:8em;
    text-align:left;
         padding-left:2px;
    cursor:pointer;
    user-select:none;
    white-space:pre;
}

.answer3{
    display:inline-block;
    width:8em;
    text-align:left;
         padding-left:2px;
    cursor:pointer;
    user-select:none;
    white-space:pre;
}

.answer4{
    display:inline-block;
    width:8em;
    text-align:left;
         padding-left:2px;
    cursor:pointer;
    user-select:none;
    white-space:pre;
}

.answer5{
    display:inline-block;
    width:8em;
    text-align:left;
         padding-left:2px;
    cursor:pointer;
    user-select:none;
    white-space:pre;
}

.answer6{
    display:inline-block;
    width:8em;
    text-align:left;
         padding-left:2px;
    cursor:pointer;
    user-select:none;
    white-space:pre;
}

.answer7{
    display:inline-block;
    width:8em;
    text-align:left;
         padding-left:2px;
    cursor:pointer;
    user-select:none;
    white-space:pre;
}

.answer8{
    display:inline-block;
    width:8em;
    text-align:left;
         padding-left:2px;
    cursor:pointer;
    user-select:none;
    white-space:pre;
}

.answer9{
    display:inline-block;
    width:8em;
    text-align:left;
         padding-left:2px;
    cursor:pointer;
    user-select:none;
    white-space:pre;
}

/* 答えの色：赤 */
.red{
    color:red;
}

/* 答えの色：青 */
.blue{
    color:blue;
}

/* 非表示 */
.hidden{
    color:transparent;
}

/* コマンドボタン */
button{
    margin-top:8px;
    margin-left:15px;
    font-size:larger;
    font-weight:normal;
    padding:2px 8px 0px 8px;
}

/* 章タイトル */
.chapter{
    font-size:x-large;
    font-weight:bold;
    margin-bottom:2px;
}

/* 節タイトル */
.section{
    font-size:larger;
    font-weight:bold;
    text-decoration: underline;
} 

/* リンクデザイン */
a{
    color:black;
    text-decoration:none;
}

a:hover{
    color:yellow;
    background-color:#000099;
    text-decoration: none;
  }