.box03 { 
  text-align: center;
  min-width:410px;
  height: 100%;
}
.box03:before {
  content: "";
  display: inline-block;
  height: 100%;
  vertical-align: middle;
  margin-right: -1000px;
  padding-left:-50px;
}
.box03_unit {
  display: inline-block;
  vertical-align: middle;
  width: 60px;
   padding: 0px 0px;
   background-color:#9FF;確認用背景色
 
}
.box03_unit p {
  text-align: left;
}