.fxpg {
    padding: 40px 0;
    margin-top: 40px;
}
.fxpg .title-internal {
    margin: 20px 0;
    font-size: 18px;
    line-height: 40px;
    background-color: rgba(76,45,130,0.2);
}
.fxpg .title-internal > .color {
    width: 8px;
    height: 40px;
    margin-right: 20px;
    background-color: #4c2d82;
}

.fxpg .article-title {
    font-size: 25px;
    font-weight: bold;
    color: #333333;
    text-align: center;
    line-height: 1.5;
    margin-bottom: 30px;
}

.fxpg .option-item {
    margin: 30px 0 20px;
}
.fxpg .crude {
    font-weight: bold;
    margin: 30px 0 20px;
}
.explanation {
    text-indent: 30px;

}
.explanation .crude {

}
.result_div {
    padding: 40px 0 0;
}
.result_div .h-btn {
    display: block;
    margin: 0 auto;
}
.result_div .fraction {
    margin: 20px auto;
    width: 80%;
    font-size: 22px;
    display: none;
}
.result_div .fraction p {
    display: inline-block;
    width: 49%;
}
.centertitle{
    display: block;
    width: 100%;
    text-align: center;
    margin-bottom: 20px;
}