<style>

* {
 font-family: Arial;
 text-decoration: none;
}

#logo {
    display: flex;
    float: right;

}

  #menu ul {
    margin: 1px;
    padding: 0;

   
  }


  #menu .main-menu {
    display: none;
  }

  #tm:checked + .main-menu {
    display: block;
  }

  #menu input[type="checkbox"], 
  #menu ul span.drop-icon {
    display: none;
  }

  #menu li, 
  #toggle-menu, 
  #menu .sub-menu {
    border-style: solid;
    border-color: rgba(0, 0, 0, .05);
  }

  #menu li, 
  #toggle-menu {
    border-width: 0 0 1px;
  }

  #menu .sub-menu {
    background-color: #FBFBFB;
    border-width: 1px 1px 0;
    margin: 0 1em;
  }

  #menu .sub-menu li:last-child {
    border-width: 0;
  }



  #menu a{
    color: #ddd; /* COLOR DEL SUBMENU*/
    display: block;
    padding: 3 5.5em;
    text-decoration: none; /*stilos quita subrayado COLOR DEL SUBMENU*/
    transition: .4s;

}




  #menu li, 
  #toggle-menu, 
  #menu a {

    position: relative;
    display: block;
    color: black;
    /*text-shadow: 1px 1px 0 rgba(0, 0, 0, .125);*/
  }

  #menu, 
  #toggle-menu {
    background-color:#FBFBFB ; /*color barra menu minimizada*/
  }

  #toggle-menu, 
  #menu a {
    padding: 1em 2.5em;
  }

  #menu a {
    transition: all .125s ease-in-out;
    -webkit-transition: all .125s ease-in-out;
  }

  #menu a:hover {
    background-color: #234561;  /*color sombre seleccion */
    color: white;   /*color de la fuente hover*/
  }

  #menu .sub-menu {
    display: none;
  }

  #menu input[type="checkbox"]:checked + .sub-menu {
    display: block;
    f
  }

  #menu .sub-menu a:hover {

    color: width;
  }

  #toggle-menu .drop-icon, 
  #menu li label.drop-icon {
    position: absolute;
    right: 1.5em;
    top: 1.25em;
  }

  #menu label.drop-icon, #toggle-menu span.drop-icon {
    border-radius: 50%;
    width: 1em;
    height: 1em;
    text-align: center;
    background-color: rgba(0, 0, 0, .125);
    text-shadow: 0 0 0 transparent;
    color: rgba(255, 255, 255, .75);
  }

  #menu .drop-icon {
    line-height: 1;
  }

@media only screen and (max-width: 50em) and (min-width: 40.01em) {
 
  #menu li {
    width: 33.333%;
      color: white;
  }



  #menu .sub-menu li {
    width: auto;
  }
}

@media only screen and (min-width: 52em) {
  #menu .main-menu {
    display: block;
  }



  #toggle-menu, 
  #menu label.drop-icon {
    display: none;
  }

  #menu ul span.drop-icon {
    display: inline-block;
  }

  #menu li {
    float: right;

  }

  #menu .sub-menu li {
    float: none;
  }

  #menu .sub-menu {
    border-width: 0;
    margin: 0;
    position: absolute;
    top: 100%;
    left: 0;
    width: 12em;
    z-index: 3000;

  }

  #menu .sub-menu, 
  #menu input[type="checkbox"]:checked + .sub-menu {
    display: none;
  }

  #menu .sub-menu li {
    border-width: 0 0 1px;
  }

  #menu .sub-menu .sub-menu {
    top: 0;
    left: 100%;
  }

  #menu li:hover > input[type="checkbox"] + .sub-menu {
    display: block;
  }
}
