.matching-fast{
    width: 90%;
    margin: auto;
}
.matching-keyboard-row:nth-child(1) .matching-key,
.matching-keyboard-row:nth-child(2) .matching-key{
    width: -webkit-calc(20% - 9.8px);
    width: calc(20% - 9.8px);
}
.count_p{
    text-align: center;
    line-height: 22px;
}
.fast-item{
    height: 60px;
    font-size: 0.2rem;
    color: #000;
}
.count_p span{
    font-size: 0.12rem;
}