prometheus/web/static/css/graph.css

body {
  margin: 0;
}

.graph_container {
        font-family: Arial, Helvetica, sans-serif;
}

.graph {
        position: relative;
        min-height: 400px;
        overflow-x: hidden;
}

svg {
  border: 1px solid #aaa;
  margin-bottom: 5px;
}

.legend {
        display: inline-block;
        vertical-align: top;
        margin: 0 0 0 0px;
}