html {

    background-color: #fff;
    display: inline-block;

    }
body {
    display: inline-block;
}   


p {
    display: inline-block;

}

#container {
    /* 50px * 2 + 10px * 2 */
    margin: 100px auto;
    width:6000px;
  }
  
  #board {
    list-style: none;
    margin: 0 0 8px;
    padding: 10px;
    background: #fff;
    border-radius: 4px;
    font-size:200px;
    border: thin #222 solid;
    width:6000px;


  }

  .clr.true:before{
    content: 'クリア！';
    color: red;
}
  
#board li {
    background: #fff;
    width: 400px;
    height: 400px;
    padding: 100px;
    cursor: pointer;

    text-align: center;
    display: inline-block;
    border-bottom :dotted #aaa;


}
  
#board li.pressed {
    background: #ccc;
    box-shadow: none;
    margin-top: 9px;
    margin-bottom: 1px;
    display: inline-block;

}
  


#header {
    font-size:40px;
}

#btn {
    color:#fff;
    cursor: pointer;
    user-select: none;
    margin:30px 30px 30px 120px ;
    background: #00aaff;
    padding: 30px;
    border-radius: 4px;
    font-size:40px;
    text-align: center;
    box-shadow: 0 4px 0 #0088cc;
    width:500px;
}


#setsumei{
    position: fixed;
    width:100%;
    text-align:left;
    margin:0 0 0 0px;
    font-size:30px;
    padding:0 0 0 5px;
    background-color: #b3e3ff;
}
#q_num{
    font-size:60px;
    text-align: center;
    margin:20px;
}

.upper{
    position: fixed;
    text-align: center;
    width:160px;
    height:120px;
    right:350px;
    top:70px;
    transition:1s;
    opacity:0.7;
    border: 5px solid rgb(32, 67, 88);
    border-radius: 10px;
    font-size: 30px;
    padding :20px;
    font-weight: bold;
    background-color: #fff;
}

#timer {
    position: fixed;
    right:230px;
    margin:0px; 
    top:180px;
    transition:1s;
    opacity:1;
    font-size: 30px;
    padding :20px;
    font-weight: bold;
    text-align: left;
}

.hidden_show {
    position: fixed;
    text-align: center;
    font-size:100px;
    height: 0;
    padding: 0 px;
    overflow: hidden;
    opacity: 0;
    transition: 0.8s;
    color: #ff0000;
    top: 40%;
    left: 50%;

}

#board .hidden_show2 {
  padding: 10px 0;
  height: auto;
  opacity: 1;
}

#timescore {
    font-size:40px;
    color:#000;
    margin:0px;
    padding:10px;
    font-weight: bold;
    text-decoration: underline;
    background-color: rgba(255, 255, 255,0.9);



}
.clearb{
    clear: both;
    white-space: wrap;
}
.retry {
    color:#fff;
    cursor: pointer;
    user-select: none;
    margin:0px;
    background: #00aaff;
    border-radius: 4px;
    font-size:30px;
    text-align: center;
    box-shadow: 0 4px 0 #0088cc;
    width:500px;
    height:100px;

}
.upper3{
    color:#666;
    position:fixed;
    right:50px;
    bottom:50px;
    transition:1s;
    opacity:0.7;
    border: 5px solid green;
    border-radius: 10px;
    font-size: 20px;
    padding :20px;
    font-weight: bold;

    }