dc-sdk/modules/themes/contextmenu.scss

.dc-context-menu {
  position: absolute;
  left: 0;
  top: 0;
  min-width: 120px;
  min-height: 10px;
  background: rgba(43,44,47,.8);
  border: 1px solid #2b2c2f;
  border-radius: 4px;
  visibility: hidden;
  z-index: -1;
  cursor: pointer;
  .menu-list {
    width: 100%;
    color: #fff;
    .menu-item {
      font-size: 14px;
      list-style: none;
      width: 100%;
      &:nth-child(n+2)::before{
        content: "";
        display: block;
        height: 1px;
        width: 100%;
        background: -webkit-linear-gradient(270deg,transparent,hsla(0,0%,100%,.2),transparent);
        background: linear-gradient(270deg,transparent,hsla(0,0%,100%,.2),transparent);
      }
      a{
        color: #fff;
        display:block;
        padding: 6px 10px;
        clear: both;
        text-decoration: none;
        &:hover{
          background-color: #444d59;
        }
      }
    }
  }
}