#outer{
    width: 100%;
    height: 500px;
    display: table;
}
#inner{
    display: table-cell;
    text-align: center;
    vertical-align: middle;
}
#waku{
    margin: 100px auto;
    padding-top: 30px;
    width: 400px;
    height: 220px;
    border: 2px solid #CCC;
    text-align: center;
    vertical-align: middle;
}
#index_logo{
    margin-left: auto;
    margin-right: auto;
    min-width: 72px;
    min-height: 72px;
}
div.input{
    display: table;
    margin: 5px auto;
}
.input label{
    display: table-cell;
    width: 100px;
}
.input input{
    display: table-cell;
    width: 170px;
}