body {
font-size: x-small;
}
/* default */ 
h1 {
color: #ffffff;
background-color: #3e3e3e;
margin: 0;
}
h2 {
color: #ffffff;
background-color: #3e3e3e;
margin: 0;
}
hr {
color: #a9a9a9;
}

img.img-10px {
width:10px;
height:10px;
}
img.img-15px {
width:15px;
height:15px;
}
img.img-20px {
width:20px;
height:20px;
}

div.regist {
color:#ffffff;
background-color:#13a2c5;
text-align:center;
font-size: x-small;
}