.text-c form{
    display: inline-block;
    margin-left: 5px;
    align-items: center;
}
.text-c form input{
    height: 26px;
    line-height: 26px;
    width: 40px;
    border: 1px solid #e3e3e3;
    padding: 0 5px;
    text-align: center;
}
.text-c form button{
    height: 26px;
    line-height: 26px;
    border: 1px solid #e3e3e3;
    width: 50px;
    margin-left: 5px;
}


.bd > ul > li{
    display: none;
}

.bd .this{
    display: block;
}