.connRemark{
    display:none;
}
.choose{
    position: absolute;
    right: 0;
    bottom: 0;
    padding: 8px 20px;
    border:0;
    background: #2196F3;color: white;
    border-radius: 5px;
}
.positonBottom{
    position: absolute;
    left: 0;
    bottom: 0;
}
.positionZindex{
    opacity: 0;
    position: relative;
    bottom: 0;
    z-index: 1;
}