How To Change Desktop Menu CSS

@media all and (min-width: 1001px) {
/*** NAVIGATION ***/
  .header-menu {
    position: relative;
    z-index: 5;
    width: 980px;
    margin: 0 auto 30px;
    border-top: 1px solid #ddd;
    border-bottom: 1px solid #ddd;
    padding: 25px 0;
    text-align: center;
  }

  .menu-toggle,
  .sublist-toggle {
    display: none;
  }

  .header-menu > ul {
    display: block !important; /* prevents toggle display:none on resize */
    font-size: 0;
  }

  .header-menu > ul.mobile {
    display: none !important;
  }

  .header-menu > ul > li {
    display: inline-block;
    border-left: 1px solid #ddd;
    padding: 0 15px;
    vertical-align: middle;
  }

  .header-menu > ul > li:first-child {
    border-left: none;
  }

  .header-menu > ul > li > a {
    display: block;
    padding: 5px 10px;
    line-height: 20px;
    font-size: 17px; /*reset zeroing*/
    color: #555;
    cursor: pointer;
  }

  .header-menu > ul > li > a:hover,
  .header-menu > ul > li > a:focus {
    color: #4ab2f1;
  }

  .header-menu .sublist {
    display: none;
    position: absolute;
    width: 200px;
    box-shadow: 0 0 2px rgba(0,0,0,0.2);
    background-color: #fff;
    padding: 10px 0;
    text-align: left;
  }

  .header-menu .sublist li {
    position: relative;
  }

  .header-menu .sublist li a {
    display: block;
    position: relative;
    padding: 10px 20px 10px 30px;
    font-size: 14px;
    color: #444;
  }

  .header-menu .sublist li a:before {
    content: "";
    position: absolute;
    top: 17px;
    left: 15px;
    width: 5px;
    height: 5px;
    background-color: #ddd;
  }

  .header-menu .sublist li:hover > a,
  .header-menu .sublist li:focus > a {
    background-color: #f6f6f6;
  }

  .header-menu ul li:hover > .sublist,
  .header-menu ul li:focus > .sublist {
    display: block;
  }

  .header-menu .sublist .sublist {
    top: -10px;
    left: 100% !important;
  }
}
@media all and (min-width: 1367px) {
/*** NAVIGATION ***/


  .header-menu {
    width: 1200px;
  }

  .header-menu > ul > li {
    padding: 0 20px;
  }

  .header-menu > ul > li > a,
  .header-menu > ul > li > span {
    font-size: 18px;
  }
}