.chapter_mb2{
	margin-bottom: 2rem;
}
.mod_s_mb1e_chapter {
    margin-bottom: 1em !important;
}
.md-1-2l-w .md-img-box {
    width: 53.73%;
    max-width: 180px;
}

.bt-1 .bt-style {
    margin: 0 0 20px;
	width: 100%;
}
.md-1-2l-w {
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;
}
.nl-1-nest {
    margin: 5px 0 0;
}

@media only screen and (max-width: 767px){
.md-1-2l-w .md-img-box {
    margin: auto;
}
}