#content_main {
	width: 100%;
	padding: 0 3vw 5rem 5vw;
	background-color: #fff;
	letter-spacing: 0.03rem;
	line-height: 1.7rem;
}

.is-style-default {
	margin: 1.6rem 0;
}
.is-style-dots {
	margin: 2rem auto;
	width: 3em;
	border-top: 10px dotted #ababab;
	border-right: none;
	border-bottom: none;
	border-left: none;
}

.button_download a {
    background: #444;
    position: relative;
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin: 0 auto;
    max-width: 400px;
    padding: 20px 25px;
    color: #fff;
    transition: 0.3s ease-in-out;
    font-size: 1.5em;
    font-weight: 600;
    z-index:0;
}
.button_download a:hover {
    color: #fff;
    background: #236da4;
}

.h1_level {
	margin-left: 0.5rem;
}
.h2_level {
	margin-left: 1.0rem;
}
.h3_level {
	margin-left: 1.5rem;
}
.h4_level {
	margin-left: 2.0rem;
}