.infomation-l{width: 20%;}
.infomation-r{width: 80%;}
body{background-image: url(../img/bg.jpg);background-color:rgba(255,255,255,0.8);background-blend-mode:lighten;}

.under{
  background-image: url(../img/gaiyo01.jpg);
  background-repeat: no-repeat;
  background-size: contain;
  background-position: bottom;
  height: auto;
}