@charset "utf-8";

body {

    text-align: center;
    font-size: 160% ;
        -moz-user-select: none; /* Firefox */
        -ms-user-select: none; /* Internet Explorer */
        -khtml-user-select: none; /* KHTML browsers (e.g. Konqueror) */
        -webkit-user-select: none; /* Chrome, Safari, and Opera */
        -webkit-touch-callout: none; /* Disable Android and iOS callouts*/

}




p#subject {
    font-size: 30 px;

}
input[type=text]{
    width:800px;
    height:110px;
    font-size : 60px;
    border-color:#189B12;
    border-width:5px;
    border:dashed;

}

a:hover {
	text-decoration:underline;
}
a:active {
	color:#666;
}

.upper{
    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;

    }
.upper:hover{
    opacity:1;
}

.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;
}