.articleSection{width:100%;max-width:1080px;margin:auto;padding:0 20px 7.5%;}
@media screen and (min-width:700px){
.articleSection{padding-bottom:52.5px;}
}
h2{line-height:1.5em;margin:3.5em auto 0.7em;padding:0.5em;box-shadow:0 3px 6px rgba(0,0,0,0.5);background-color:var(--subcolor01);color:#fff;}
h3{line-height:1.5em;margin:1.75em auto 0.7em;padding:0.5em 0.75em;position:relative;background-color:var(--subcolor01);color:#fff;}
h3::before,h3::after{content:'';border-width:0.375em;border-style:solid;position:absolute;}
h3::before{border-color:transparent transparent #fff #fff;left:0;bottom:0;}
h3::after{border-color:#fff #fff transparent transparent;right:0;top:0;}