body {
  background-color: #e2e2e2;
  font-family: "Roboto","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size: 1em;
  line-height: 1.42857143;
  color: #333;
  margin: 0px;
}

nav {
  background: #fff;
}

nav ul li {
  display: inline-block;
  padding: 0em 3em;
  border-right: 0.2em #555 solid;
}


nav ul li:first-child {
  padding-left: 0em;
}

nav ul li:last-child {
  padding-right: 0em;
  border: 0em;
}

nav ul li a {
  text-transform: uppercase;
  font-size: 2em;
  color: #00897b;
  text-decoration: none;
}

nav ul li a:hover {
  border-bottom: 0.2em #ff9100 solid;
}

.container {
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}

.txt-center {
  text-align: center;
}

.list-style-none {
  margin: 0em;
  padding: 0em;
  list-style: none;
}

.contact-info-list li {
  width: 30%;
  display: inline-block;
  padding: 0.5em 0;
}

.contact-info-list li a {
  color: #333;
}

.fa-telegram {
  color: #333;
}

.fa-linkedin-square:hover {
  color: #0077B5;
}

.fa-quora:hover {
  color: #b92b27;
}

.fa-twitter-square:hover {
  color: #1da1f2;
}

.fa-facebook-square:hover{
  color: #3b5998;
}

.fa-telegram:hover {
  color: #0088cc;
}

.active {
  border-bottom: 0.1em #555 solid;
}

.lsit_style-none > li {
  margin-left: -2em;
  cursor: pointer;
}

.hidden {
  display: none;
}

.fadeIn{
  display: block;
  animation: 0.8s fade_in;
}

.fadeOut{
  animation: 0.8s fade_out;
}

@keyframes fade_in {
  0% {
    opacity: 0;
    max-height: 0;
  }

  100% {
    opacity: 1;
    max-height: 100px;
  }
}

@keyframes fade_out {
  0% {
    opacity: 1;
    max-height: 100px;
  }

  100% {
    opacity: 0;
    max-height: 0;
  }
}


@media (min-width: 1200px) {
  .container{
    width: 1170px;
  }
}

@media (min-width: 992px) {
  .container {
    width: 970px;
  }

  nav ul li {
    padding: 0em 5em;
  }
}

@media (min-width: 768px) {
  .container {
    width: 750px;
  }
}

@media (max-width: 640px) {
  nav ul li {
    padding: 0em 1em;
  }

  nav ul li a {
    font-size: 1.4em;
  }

  nav ul li a:hover {
    border-bottom: 0.3em #e65100 solid;
  }
}