#tit h1 {
    text-align: center;
    font-size: 1.5em;
    font-weight: 400;
    margin-top: 40px;
}
#tit p {
    text-align: center;
}
#freq_range {
    width: 100%;
}
#main_cont {
    text-align: center;
    width: 600px;
    margin-left: calc(50% - 300px);
    border: solid 1px #999;
    padding: 0 10px 20px 10px;
    border-radius: 4px;
}
#main_cont select {
    padding: 5px 10px;
    width: 220px;
}
#main_cont input[type="number"] {
    padding: 5px 10px;
    width: 200px;
}
.cnts {
    margin-top: 30px;
    margin-bottom: 0;
}
.cuts {
    border-top: solid 1px #999;
    padding-top: 20px;
}
#main_cont button {
    padding: 5px 30px;
}
#freq_range, #vol_range {
    margin-top: 0;
    width: 300px;
}
#now_freq, #now_vol {
    margin-top: 0;
    margin-bottom: 40px;
}