.main-visual {
    background-image: url('../image/4423276_m.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    /*    min-height: 480px;*/
    /*opacity: 0.1;*/
}


.bg-mask {
    background: rgba(255, 255, 255, 0.5);
}

.organizer {
    margin-bottom: 30px;
}

ul {
    text-indent: 0;
    margin-left: 25px;
}

i {
    text-indent: 0;
    margin-right: 10px;
}

.bold {
    font-weight: bold;
}

.margin-top-20 {
    margin-top: 20px;
}

.padding-50 {
    /*    text-indent: 50px;*/
    padding-left: 50px;
}

.lead-sentence-title {
    position: relative;
    text-align: center;
    font-size: 23px;
    font-weight: bold;
    margin-bottom: 24px;
}

.lead-sentence-title:before {
    position: absolute;
    bottom: -7px;
    left: calc(50% - 30px);
    width: 60px;
    height: 5px;
    content: '';
    border-radius: 3px;
    background: #000;
}

.lead-sentence {
    width: 90%;
    margin: 0 auto;
    font-size: 18px;
    margin-bottom: 20px;
}

.lead-sentence p {
    text-indent: 20px;
}


.small-subheading {
    font-size: 22px;
    border-bottom: 1px solid #000;
    font-weight: bold;
    margin-top: 15px;
    margin-bottom: 9px;
}


.contact-area {
    background: rgb(242, 246, 245);
    padding: 10px;
    text-align: center;
    font-size: 18px;
}

.centering {
    text-align: center;
    margin-bottom: 20px;
}

p.sentence {
    text-indent: 20px;
    margin: 0;
}

.t-padding {
    padding-top: 20px;
}

.teacher-img {
    width: 136px;
    height: 157px;
    margin-top: 20px;
    border: 1px solid #aaa;
}

.t-name {
    border-bottom: 1px solid #000;
    margin-bottom: 10px;
    margin-top: 20px;
}

.red {
    color: red;
}

.border {
    border-bottom: 1px solid #000;
}

.box {
    padding: 0.5em 1em;
    margin: 2em 0;
    background: #f0f7ff;
    border: dashed 2px #5b8bd0;
}