h1.guten-element.guten-Gvi821, h2.guten-element.guten-Gvi821, h3.guten-element.guten-Gvi821, h4.guten-element.guten-Gvi821, h5.guten-element.guten-Gvi821, h6.guten-element.guten-Gvi821 { color: rgba(0, 0, 0, 1); font-family: "Noto Serif JP";  overflow-wrap: break-word; word-break: break-word; } .guten-Gvi821 {   }