body{
 background-color:#19448e;
 color:#ffffff;
 padding: 50px;
}
h1{
 text-align:center;
 font-size: 500%;
 line-height: 130%;
}
.kaigi{
 text-align:center;
}
.a{
 font-size: 28px;
}
.b{
 font-size: 28px;
 font-weight: bold;
 position: relative;
 bottom: -25px; 
}
.c{
 font-size: 100px;
 font-weight: bold;
}
.d{
 font-size: 20px;
}
.e{
 font-size: 28px;
 font-weight: bold;
}
.f{
 font-size: 23px;
}
.g{
 display: inline-block;
 width: 300px;
 height: 140px;
 text-align:center;
 line-height: 40px;
 border-radius: 50%;
 border: solid 3px #ffffff;
 font-size: 28px;
 font-weight: bold;
 position: relative;
 bottom: 480px; left: 65%;
 transform: rotate(-7deg);
}
.h{
 font-size: 23px;
 position: relative;
 bottom: 700px; left: 70%;
}
.qr{
 position: relative;
 bottom: 390px; left: 70%;
}