.billposition{
    position: relative;
    border: 1px solid;
    /* width: 300px;
    height: 300px; */
    overflow: hidden;
}
.billposition_dialog{
    /* width: 50px;
    height: 50px; */
    border: 2px solid red;
    outline: rgba(0,0,0, 0.5) solid 1000px;
    background: transparent;
    position: absolute;
    /* margin: auto; */
    display: none;
    top: 0;
    left: 0;
}