.block-menu .nav {
  height: 40px;
  border-style: solid;
  border-width: 2px 0 2px 0;
  width: 100%;
}

.block-menu .nav,
.block-menu .nav ul {
  margin: 0;
  padding: 0;
  list-style-type: none;
  position: relative;
}

.block-menu .menu-top .nav {
  z-index: 100;
}
.block-menu .menu-bot .nav {
  z-index: 80;
}

.block-menu .nav li a,
.block-menu .nav li span {
  display: block;
  padding: 11px 0 11px 0;
  width: 100%;
  text-decoration: none;
  text-align: center;
  font-family: Verdana, sans-serif;
  font-size: 14px;
}
.block-menu .nav li span{
  cursor: default;
}

.block-menu .nav li:hover,
.block-menu .nav ul li:hover,
.block-menu .nav a:hover { 
  transition: ease-out 0.6s;
}

.block-menu .nav li {
  position: relative;
  flex: auto;
  transition: ease-out 0.6s;
}

/* адаптивность */
@media (min-width: 720px) {
  .block-menu .nav li a,
  .block-menu .nav li span {
    padding: 11px 0 11px 0 !important;
    font-size: 14px !important;
  }
}

@media (min-width: 580px) {
  .block-menu .nav, .block-menu .nav ul {
    display: flex;
  }
  .block-menu .nav li:hover,
  .block-menu .nav ul li:hover { 
    background-color: #365aaf;
  }
  
  .block-menu .nav ul {
    display: none;
    position: absolute;
    top: 100%;
    width: 100%;
    border-style: solid;
    border-width: 2px;
    border-radius: 0 0 15px 15px;
    overflow: hidden;
  }

  .block-menu .nav li {
    height: 100%;
  }
  
  .block-menu .nav li a,
  .block-menu .nav li span {
    padding: 12px 0 12px 0;
    font-size: 12px;
  }
  .block-menu .nav li:hover ul { display: block; }

  .block-menu .nav ul li { 
    float: none;
  }
}
@media (max-width: 580px){
  .block-menu .nav {
    overflow: hidden;
  }
  
  .block-menu .nav:hover {
    height: auto;
  }
  
}