.react-datagrid {
    .z-resize-proxy {
        position: absolute;
        height: 100%;
        top: 0px;
        display: none;
        width: 3px;
        z-index: 1000;
        border-left: $datagrid-cell-border-width solid darken($datagrid-cell-border-color, 20%);
    }

    &.z-columns-resizable {
        .z-resize-proxy {
            display: block;
        }
    }
}