.jp-Cell.jp-selected-cell { border-color: #66BB6A; border-left-width: 1px; padding-left: 10px; background: linear-gradient(to right, #66BB6A -40px, #66BB6A 5px, transparent 5px, transparent 100%); } .jp-Cell { padding-top: 10px; padding-bottom: 10px; padding-left: 10px; padding-right: 10px; border-width: 1px; border-style: solid; border-color: transparent; }