html`<link href='${resolve(
'leaflet@1.2.0/dist/leaflet.css'
)}' rel='stylesheet' /><style>
.legend {
line-height: 18px;
color: #555;
border: 1px solid #000000;
border-radius: 4px;
padding: 8px;
background: rgba(255,255,255,0.8);
}
.legend i {
width: 18px;
height: 18px;
float: left;
margin-right: 8px;
opacity: 0.7;
}</style>`