Grey line

gistfile1.html

<svg id="Layer_1" class="filling" width="925" height="605" version="1.1" xmlns="http://www.w3.org/2000/svg">
    <g id="Layer_2">
    <path data-over-line="" d="M90,5
                       L845,5
                       A70,70,0,0,1,845,158
                       L180,158
                       A60,60,0,0,0,180,288
                       L843,288
                       A70,70,0,0,1,843,448
                       L81,448
                       A70,70,0,0,0,81,602
                       L470,602" stroke="#e2e2e2" fill="none" stroke-width="4" style="stroke-dashoffset: 0px;"></path>
    </g>
</svg>