nav {    
  display: block;
  text-align: left;
  color: rgba(51,54,60,100);
}
nav ul {
  margin: 0;
  padding:0;
  list-style: none;
}
.nav a {
  display:block;
  color: #fff;
  background: rgba(51,54,60,100);
  text-decoration: none;
  padding: 1em 2.1em;
  text-transform: uppercase;
  font-size: 100%;
  letter-spacing: 3px;
  position: relative;
}
.nav{  
  vertical-align: top; 
  display: inline-block;
}
.nav li {
  position: relative;
}
.nav > li { 
  float: left;
  border-bottom: 7px solid; 
  margin-right: 1px; 
} 
.nav > li > a {
  margin-bottom: 1px;
}

/*border bawah*/
.nav > li:hover, 
.nav > li:hover > a { 
  border-bottom-color: #0078bf;
}
.nav li:hover > a { 
  color:#1a53ff; 
}
.nav > li:last-child { 
  margin-right: 0;
}
.nav li li a { 
  margin-top: 1px;
}
.nav li a:first-child:nth-last-child(2):before { 
  content: ""; 
  position: absolute; 
  height: 0; 
  width: 0;
  top: 50% ;
  right:5px;  
 }
 /* submenu positioning*/
.nav ul {
  position: absolute;
  white-space: nowrap;
  border-bottom: 5px solid  #5791C3;
  z-index: 1;
  left: -99999em;
}
.nav > li:hover > ul {
  left: auto;
  margin-top: 5px;
  min-width: 100%;
}
.nav > li li:hover > ul { 
  left: 100%;
  margin-left: 1px;
  top: -1px;
}
/* arrow hover styling */
.nav > li > a:first-child:nth-last-child(2):before { 
  border-top-color: #aaa; 
}
.nav > li:hover > a:first-child:nth-last-child(2):before {
  border: 5px solid transparent; 
  border-bottom-color: #5791C3; 
  margin-top:-5px
}
.nav li li > a:first-child:nth-last-child(2):before {  
  border-left-color: #aaa; 
  margin-top: -5px
}
.nav li li:hover > a:first-child:nth-last-child(2):before {
  border: 5px solid transparent; 
  border-right-color: #5791C3;
  right: 10px; 
}