.mainBox {
    margin-top: 35px;
}
.mainBox .container {
    max-width: 500px;
}

.gameHall {
    border: 3px dashed #ddd;
    min-height: 300px;
    margin: 50px auto;
    max-width: 500px;
}
.gameHall .topBar {
    position: relative;
}
.gameHall .topBar .renewBtn {
    position: absolute;
    right: 8px;
    top: -5px;
}
.gameHall .roomList {
    text-align: left;
    margin-top: 10px;
    background-color: #fff;
}
.gameHall .roomList .item_ {
    padding: 5px;
}
.gameHall .roomList .item_:nth-child(odd) {
    background-color: #f7f7f7;
}
.gameHall .roomList .top {
    position: relative;
}
.gameHall .roomList .top .gameTitle {
    font-size: 14px;
    color: #299f87;
    position: relative;
    font-weight: bold;
    cursor: pointer;
}
.gameHall .roomList .top .ctime {
    font-size: 12px;
    color: #777;
    position: absolute;
    right: 10px;
    top: 5px;
}