.matching-fast{
    padding-top: 15px;
    margin: auto;
}
.matching-keyboard-row:last-child .matching-key{
    width: -webkit-calc(100% / 3 - 8px);
    width: calc(100% / 3 - 8px);
}
.matching-keyboard-row:last-child .matching-key:nth-child(1),
.matching-keyboard-row:last-child .matching-key:nth-child(2){
    width: -webkit-calc(100% / 6 - 10px);
    width: calc(100% / 6 - 10x);
}
.matching-keyboard-row:last-child .matching-key.width50:nth-child(1),
.matching-keyboard-row:last-child .matching-key.width50:nth-child(2){
    width: calc(50% - 6px);
}
.count_p{
    text-align: left;
}
.fast-item{
    height: 60px;
    font-size: 0.24rem;
}
.f_question{
    border: none;
    background:rgba(243,243,243,1);
    color: rgba(0,0,0,0.80);
    box-sizing: border-box;
}