h2#danraku2{
position: relative;
padding: 0.5em;
background: #58D3F7;
color: white;
}

h1::before {
position: absolute;
content: '';
top: 100%;
left: 0;
border: none;
border-bottom: solid 15px transparent;
border-right: solid 20px rgb(149, 158, 155);
}
}