.dv-border-box-3 { position: relative; width: 100%; height: 100%; } .dv-border-box-3 .dv-border-svg-container { position: absolute; width: 100%; height: 100%; top: 0px; left: 0px; } .dv-border-box-3 .dv-border-svg-container polyline { fill: none; } .dv-border-box-3 .dv-bb3-line1 { stroke-width: 3; } .dv-border-box-3 .dv-bb3-line2 { stroke-width: 1; } .dv-border-box-3 .border-box-content { position: relative; width: 100%; height: 100%; }