.padding_30_50 {
    padding: 30px 50px;
}

.padding_btn_20 {
    padding-bottom: 20px;
}

.margin_top_20 {
    margin-top: 20px;
}

.margin_left_20 {
    margin-left: 20px;
}

.margin_right_20 {
    margin-right: 20px;
}

.text_center {
    text-align: center;
}

.width_300 {
    width: 300px;
}

.width_750 {
    width: 750px;
}

.title {
    font-size: 24px;
    line-height: 50px;
}

.margin_20 {
    margin: 20px;
}

.padding_20 {
    padding: 20px;
}

.div_btn_line {
    border-bottom: 1px solid #c9c9c9;
}

.left_title {
    width: 30%;
    background-color: #3ba3ef;
    color: #fff;
    font-size: 20px;
}
.bottom_fixed {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: #f8f8f8;
    padding: 10px 0;
    text-align: center;
}