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HTML 

              
                <div id="paper-container"></div>
!

CSS 

              
                #paper-container {
  position: absolute;
  right: 0;
  top: 0;
  left: 0;
  bottom: 0;
  overflow: scroll;
}

.joint-type-standard-rectangle {
    transition: opacity 0.3s ease;
}

.marker-details .joint-type-standard-rectangle {
    opacity: 0;
}
!

JS 

              
                const { dia, shapes, util } = joint;

const BG_COLOR = "#f4f7f6";
const FG_COLOR = "#131e29";

const graph = new dia.Graph();
const paper = new dia.Paper({
  width: "100%",
  height: "100%",
  frozen: true,
  model: graph,
  interactive: false,
  background: { color: BG_COLOR },
  sorting: dia.Paper.sorting.NONE
});

document.getElementById("paper-container").appendChild(paper.el);

// The `stroke` of the marker is in JointJS inherited from the link by default.
const markers = [
  // Marker #1
  {
    markup: util.svg`
            <path d="M 0 0 L 12 -4 L 5 0 L 12 4 z"
                  fill="${FG_COLOR}"            
                  stroke-width="2"
            />
        `
  },
  // Marker #2
  {
    markup: util.svg`
            <path d="M 0 0 L 12 -4 L 5 0 L 12 4 z"
                  fill="${FG_COLOR}" 
                  stroke-width="2" stroke-linejoin="round"
            />
        `
  },
  // Marker #3
  {
    markup: util.svg`
            <path d="M 0 0 L 8 -4 L 8 4 z"
                  stroke-width="2"
                  fill="${FG_COLOR}"
            />
        `
  },
  // Marker #4
  {
    markup: util.svg`
            <path d="M -2 0 L 15 -4 V 4 z"
                  stroke-width="1"
                  fill="${FG_COLOR}"
             />
        `
  },
  // Marker #5
  {
    markup: util.svg`
            <path d="M 0 0 L 12 -4 L 5 0 L 12 4 z"
                  stroke-width="2" fill="${FG_COLOR}"
            />
        `
  },
  // Marker #6
  {
    markup: util.svg`
            <path d="M 10 3 L 0 0 L 10 -3"
                  fill="none" stroke-width="2"
            />
        `
  },
  // Marker #7
  {
    markup: util.svg`
            <path d="M 10 3 L 0 0 L 10 -3"
                  fill="none" 
                  stroke-width="2"
                  stroke-linejoin="round" stroke-linecap="round"
            />
        `
  },
  // Marker #8
  {
    markup: util.svg`
            <path d="M 0 0 L 8 -4 L 8 4 z"
                  stroke-width="2" fill="${FG_COLOR}"
            />
        `
  },
  // Marker #9
  {
    markup: util.svg`
            <path d="M -3 0 L 10 -3 V 3 z"
                  stroke-width="2" fill="${FG_COLOR}"
            />
        `
  },
  // Marker #10
  {
    markup: util.svg`
            <path d="M 0 0 L 12 -4 C 8 0 8 0 12 4 z"
                  stroke-width="2" fill="${FG_COLOR}"
            />
        `
  },
  // Marker #11
  {
    markup: util.svg`
            <path d="M 0 0 L 15 -5 C 4 0 4 0 15 5 z"                  
                  stroke-width="2" fill="${BG_COLOR}"
            />
        `
  },
  // Marker #12
  {
    markup: util.svg`
            <path d="M 0 0 L 12 -5 C 10 0 10 0 12 5 z"
                  stroke-width="2" fill="${FG_COLOR}"
            />
        `
  },
  // Marker #13
  {
    markup: util.svg`
            <path d="M -5 -10 C 0 -5 0 5 -5 10 L 10 0 z"
                  stroke-width="0" fill="${FG_COLOR}"
             />
        `
  },
  // Marker #14
  {
    markup: util.svg`
            <path d="M 0 0 L 12 -8 C 8 0 8 0 12 8 z"
                  stroke-width="2" fill="${FG_COLOR}"
            />
        `
  },
  // Marker #15
  {
    markup: util.svg`
            <path d="M 0 0 L 10 4"
                  stroke-width="2" stroke-linecap="round"
            />
        `
  },
  // Marker #16
  {
    markup: util.svg`
            <path d="M 0 0 L 8 -5 V 0 z"
                  fill="${FG_COLOR}" stroke-width="2"
            />
        `
  },
  // Marker #17
  {
    markup: util.svg`
            <path d="M 0 0 L 8 -5 V 0 z"
                  fill="${FG_COLOR}" 
                  stroke-width="2" stroke-linejoin="round"
            />
        `
  },
  // Marker #18
  {
    markup: util.svg`
            <path d="M 0 0 L 5 -5 L 10 0 L 5 5 z"
                  stroke-width="2" fill="${FG_COLOR}"
            />
        `
  },
  // Marker #19
  {
    markup: util.svg`
            <path d="M 0 0 L 5 -5 L 10 0 L 5 5 z"
                  fill="${FG_COLOR}" 
                  stroke-width="2" stroke-linejoin="round"
            />
        `
  },
  // Marker #20
  {
    markup: util.svg`
            <path d="M 0 0 L 5 -5 L 10 0 L 5 5 z"
                  fill="${FG_COLOR}" 
                  stroke-width="2" stroke-linejoin="bevel"
            />
        `
  },
  // Marker #21
  {
    markup: util.svg`
            <path d="M 0 0 L 6 -3 L 12 0 L 6 3 z"
                  stroke-width="2" fill="${FG_COLOR}"
            />
        `
  },
  // Marker #22
  {
    markup: util.svg`
            <path d="M 0 0 L 6 -3 L 12 0 L 6 3 z"
                  fill="${FG_COLOR}" 
                  stroke-width="2" stroke-linejoin="round"
            />
        `
  },
  // Marker #23
  {
    markup: util.svg`
            <circle r="4" fill="${FG_COLOR}" stroke-width="2" />
        `
  },
  // Marker #24
  {
    markup: util.svg`
            <path d="M 0 -5 V 5" stroke-width="2" fill="${FG_COLOR}" />
        `
  },
  // Marker #25
  {
    markup: util.svg`
            <path d="M 5 -5 V 5" stroke-width="2" fill="none" />
        `
  },
  // Marker #26
  {
    markup: util.svg`
            <path d="M 5 -5 V 5 M 10 -5 V 5" stroke-width="2" fill="${FG_COLOR}" />
        `
  },
  // Marker #27
  {
    markup: util.svg`
            <path d="M 0 -4 L 10 0 M 0 4 L 10 0" stroke-width="2" />
        `
  },
  // Marker #28
  {
    markup: util.svg`
            <path d="M 0 -4 h 10 v 4 M 0 4 h 10 v -4"
                  stroke-width="2" fill="none"
            />
        `
  },
  // Marker #29
  {
    markup: util.svg`
            <path d="M 0 -4 h 10 v 4 M 0 4 h 10 v -4 M 10 0 0 0"
                  stroke-width="2" fill="none"
                  stroke-linecap="round" stroke-linejoin="round"
            />
        `
  },
  // Marker #30
  {
    markup: util.svg`
            <path d="M 5 -5 V 5" stroke-width="2" fill="none" />
            <circle cx="14" r="4" stroke-width="2" fill="${BG_COLOR}" />
        `
  },
  // Marker #31
  {
    markup: util.svg`
            <path d="M 0 -4 L 10 0 M 0 4 L 10 0 M 10 -5 V 5"
                  stroke-width="2"
            />
        `
  },
  // Marker #32
  {
    markup: util.svg`
            <path d="M 3 -5 L 12 5" stroke-width="2" />
        `
  },
  // Marker #33
  {
    markup: util.svg`
            <path d="M 3 -5 L 12 5 M 3 5 L 12 -5"
                  stroke-width="2"
            />
        `
  },
  // Marker #34
  {
    markup: util.svg`
            <path d="M 0 0 L 8 -5 V 0 z"
                  stroke-width="2" fill="${BG_COLOR}"
            />
        `
  },
  // Marker #35
  {
    markup: util.svg`
            <circle r="3"
                    fill="${BG_COLOR}"
                    stroke-width="2"
             />
        `
  },
  // Marker #36
  {
    markup: util.svg`
            <path d="M 0 0 L 5 -5 L 10 0 L 5 5 z"
                  stroke-width="2" fill="${BG_COLOR}"
            />
        `
  },
  // Marker #37
  {
    markup: util.svg`
            <path d="M 0 0 L 6 -3 L 12 0 L 6 3 z"
                  stroke-width="2" fill="${BG_COLOR}"
            />
        `
  },
  // Marker #38
  {
    markup: util.svg`
            <circle r="8" cx="4"
                    fill="${BG_COLOR}"
                    stroke-width="2"
            />
            <path d="M -4 0 H 12 M 4 -8 V 8"
                  fill="none"
                  stroke-width="2"
            />
        `
  },

  // Marker #39
  {
    markup: util.svg`
            <circle r="8" cx="-4"
                    fill="${BG_COLOR}"
                    stroke-width="2"
            />
        `
  },
  // Marker #40
  {
    markup: util.svg`
            <rect x="-5" y="-5" width="10" height="10"
                  fill="${BG_COLOR}"
                  stroke-width="2"
            />
        `
  },
  // Marker #41
  {
    markup: util.svg`
            <rect x="5" y="-5" width="10" height="10"
                  fill="none"
                  stroke-width="2"
            />
        `
  },

  // Marker #42
  {
    markup: util.svg`
            <path d="M -10 -10 C 3 -10 3 10 -10 10"
                  stroke-width="2" fill="none"
             />
        `
  },
  // Marker #43
  {
    markup: util.svg`
            <path d="M 0 -4 L 10 0 M 0 4 L 10 0 M 0 0 H 10"
                  stroke-width="2" fill="none"
            />
            <circle cx="14" r="3" fill="${BG_COLOR}"
                  stroke-width="2"
            />
        `
  },
  // Marker #44
  {
    markup: util.svg`
            <path d="M 10 0 L 0 0"
                  stroke="${BG_COLOR}" stroke-width="3"
            />
            <path d="M 0 0 L 8 -4 V 4 z"
                  stroke-width="2" fill="${BG_COLOR}"
            />
            <path d="M 10 0 L 18 -4 V 4 z"
                  stroke-width="2" fill="${BG_COLOR}"
            />
        `
  },
  // Marker #45
  {
    markup: util.svg`
            <polyline points="-2,0 8,-5 8,-2 17,-5 17,5 8,2 8,5 -2,0"
                  fill="${FG_COLOR}" stroke="none"
            />
        `
  },
  // Marker #46
  {
    markup: util.svg`
            <rect x="-25" width="50" height="25" rx="2" ry="2"
                transform="rotate(-90)"
                fill="${BG_COLOR}" stroke-width="2"
            />
            <image x="-25" width="50" height="25"
                transform="rotate(-90)"
                href="https://assets.codepen.io/7589991/jj-logo-black.svg"
            />
        `
  },
  // Marker #47
  {
    markup: util.svg`
            <rect x="-25" width="50" height="25" rx="2" ry="2"
                transform="rotate(-90)"
                fill="${BG_COLOR}" stroke="#0075f2" stroke-width="2"
            />
            <image x="-25" width="50" height="25"
                transform="rotate(-90)"
                href="https://assets.codepen.io/7589991/jj-logo-red.svg"
            />
        `
  },
  // Marker #48
  {
    markup: util.svg`
            <path d="M -4 0 H 12 M 4 -8 V 8"
                  stroke="#ed2637" stroke-width="2" fill="none"
            />
            <circle r="8" cx="4" fill="none"
                  stroke="#0075f2" stroke-width="2"
            />
        `
  },
  // Marker #49
  {
    markup: util.svg`
            <path d="M 0 -4 L 10 0 M 0 4 L 10 0 M 0 0 H 10"
                  stroke="#0075f2" stroke-width="2" fill="none"
            />
            <circle cx="14" r="3" fill="${BG_COLOR}"
                  stroke="#ed2637" stroke-width="2"
            />
        `
  },
  // Marker #50
  {
    markup: util.svg`
            <path d="M 10 0 L 0 0" stroke="${BG_COLOR}" stroke-width="3" />
            <path d="M -2 0 L 8 -6 V 6 z" stroke="none" fill="#ed2637" />
            <path d="M 8 0 L 18 -6 V 6 z" stroke="none" fill="#0075f2" />
        `
  }
];

const MARGIN = 30;
const LINKS_PER_LINE = 10;
const LINK_BBOX_WIDTH = 40;
const LINK_BBOX_HEIGHT = 100;

markers.forEach((marker, index) => {
  const row = Math.floor(index / LINKS_PER_LINE);
  const column = index % LINKS_PER_LINE;

  // source coordinates
  const sX = column * (MARGIN + LINK_BBOX_WIDTH);
  const sY = row * (MARGIN + LINK_BBOX_HEIGHT);
  const number = index + 1;
  const link = new shapes.standard.Link({
    source: {
      x: sX,
      y: sY
    },
    target: {
      x: sX + LINK_BBOX_WIDTH,
      y: sY + LINK_BBOX_HEIGHT
    },
    number,
    attrs: {
      root: {
        // Add tooltip with marker number to make it easier to find in the code
        title: `Marker #${number}`
      },
      line: {
        stroke: FG_COLOR,
        strokeWidth: 2,
        sourceMarker: marker,
        targetMarker: marker
      },
      wrapper: {
        strokeWidth: 15
      }
    }
  });
  link.addTo(graph);
});

// Add a hint to the graph to instruct the user to click on a link to zoom in

const hint = new shapes.standard.Rectangle({
  position: {
    x: -30,
    y: 0
  },
  size: {
    width: 630,
    height: 30
  },
  attrs: {
    root: {
      pointerEvents: "none"
    },
    body: {
      fill: {
        type: "pattern",
        markup: util.svg`
                    <text x="10" y="20"
                          fill="#ed2637"
                          font-size="12"
                          font-family="sans-serif"
                    >click on a link to zoom in</text>
                    <path d="M 155 5 v 20" stroke="#0075f2" stroke-width="2"/>
                `,
        attrs: {
          width: 160,
          height: 30
        }
      },
      stroke: "#0075f2",
      rx: 2,
      ry: 2
    }
  }
});

hint.rotate(90, true, hint.position());
hint.addTo(graph);

paper.unfreeze();

// Fit the graph into the viewport

const transformToFitContent = () =>
  paper.transformToFitContent({
    padding: 50,
    verticalAlign: "middle",
    horizontalAlign: "middle"
  });

window.addEventListener("resize", () => transformToFitContent());
transformToFitContent();

// Zooming

// Custom highlighter that shows a text next to the link
const TextHighlighter = dia.HighlighterView.extend({
  tagName: "text",
  attributes: {
    fill: "#ed2637",
    "pointer-events": "none",
    "text-anchor": "middle",
    "font-size": 8,
    "font-family": "sans-serif",
    opacity: 0
  },
  style: {
    transition: "opacity 0.3s 0.6s ease"
  },
  highlight(linkView) {
    const { text = "", ratio = 0.5, dx = 0, dy = 0 } = this.options;
    const point = linkView.getPointAtRatio(ratio);
    this.vel.text(text || "", { textVerticalAnchor: "middle" });
    this.vel.attr("transform", `translate(${point.x + dx} ${point.y + dy})`);
    // for the animation to work we need to set the opacity
    // in the next animatin frame
    util.nextFrame(() => this.vel.attr("opacity", 1));
  }
});

let currentLink = null;

paper.on({
  "link:pointerdown": (linkView, evt) => {
    const { model: link } = linkView;
    const bbox = link.getBBox();
    if (currentLink === link) {
      // Zoom into the link's single arrow
      bbox.x -= LINK_BBOX_WIDTH / 2;
      bbox.y -= 15;
      bbox.height = LINK_BBOX_HEIGHT / 2;
      paper.transformToFitContent({
        contentArea: bbox,
        horizontalAlign: "middle",
        verticalAlign: "middle"
      });
    } else {
      // Zoom into the link
      currentLink = link;
      bbox.inflate(20);
      paper.transformToFitContent({
        contentArea: bbox,
        horizontalAlign: "middle",
        verticalAlign: "middle"
      });
      TextHighlighter.removeAll(paper, "number");
      TextHighlighter.add(linkView, "root", "number", {
        layer: dia.Paper.Layers.FRONT,
        text: `#${link.get("number")}`,
        ratio: 0,
        dx: -20,
        dy: -10
      });
    }
    paper.el.classList.add("marker-details");
  },
  "blank:pointerdown": (evt) => {
    // Zoom back to all the links
    currentLink = null;
    transformToFitContent();
    TextHighlighter.removeAll(paper, "number");
    paper.el.classList.remove("marker-details");
  }
});

// Enable animations in Chrome
paper.layers.style.transition = "transform 250ms";
!
999px

Console