nav a {
  position: relative;
  box-sizing: border-box;
  display: inline-block;
  width: 100%;
  padding: 13px 10px 13px 20px;
  line-height: 125%;
  text-decoration: none;
  overflow: hidden;
  color: #637381;
  font-weight: 500; }
  nav a:hover {
    color: #5c6ac4; }
  nav a.active {
    color: #202e78;
    background-color: #dfe4e8; }

nav a:hover,
.nav_active {
    background-color: #5866c2;
    color: white;
    transition: initial;
    border-radius: 5px;
    }
a{
    transition:initail !important;
}