.gis {
background:#3B5998 url(gis.png) no-repeat center center;
background-size: contain;
}
.yandex {
background:red url(../images/ya.webp) no-repeat center center;





background-size: 20px;
}


#mainNav {
  position: fixed;
  top: 0;
  width:100%;
  height: 45px;
  overflow: hidden;
  background-color: #1c1b1b;
  -webkit-transition: height 0.5s;
  transition: height 0.5s;
  box-shadow: 10px 10px 15px rgba(0, 0, 0, 0.3);
  z-index: 500;}
#mainNav.mobile-active {
  position: fixed;
  top: 0;
  width:100%;
  background-color: #1c1b1b;
  height: 237px; }
#mainNav .navbarNav a {
    text-decoration: none;
    color: white;
    text-transform: uppercase;
    font-family: 'Montserrat', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 90%;
    font-weight: 400px;
    letter-spacing: 1px; }


/* Navigation desktop view */
@media(min-width: 992px) {
  #mainNav {
    height: 50px;
    -webkit-transition: none;
    transition: none; }
  #mainNav .navbarNav {
    width: 800px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;}
  #mainNav .navbarNav ul {
    list-style: none;
    margin: 0;
    display: flex;
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: space-around; }
  #mainNav .navbarNav ul li, #mainNav .navbarNav ul li a{
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center; }
  #mainNav .navbarNav ul li a:hover {
    background-color: white;
    color: black;}
  #social-fixed-pos {
    position: fixed;
    left: 0;
    width: 40px;
    height: 100vh; 
    display: flex;
    flex-direction: column; 
    justify-content: center;
    z-index: 500;}
  .share-btn {
    display: block;
    color: #ffffff;
    border: none;
    width: 100%;;
    height: 100px;
    outline: none;
    text-align: center;
    line-height: 100px;
    font-size: 20px;
    box-shadow: 10px 5px 15px rgba(0,0,0,0.3); }
  .share-btn:hover {
    color: white; }
  .share-btn.instagram   { background: #3B5998; }
  .share-btn.twitter     { background: #55acee; }
  .share-btn.google-plus { background: #dd4b39; }
  .share-btn.facebook    { background: #3B5998; }}


/* Navigation mobile view */
@media(max-width: 991px) {
  
  #mainNav .navbarNav {
    width: 100%;
    position: absolute;
    top: 45px; }
  #mainNav .navbarNav ul {
    list-style: none;
    margin: 0; }
  #mainNav .navbarNav ul li {
    padding: 0 0 15px 30px; }
  .mobile-nav-btn {
    width: 25px;
    height: 30px;
    display: flex;
    align-items: center;
    cursor: pointer;
    margin:6px 0 6px 30px; }
  .span-line {
    content: "";
    display: inline-block;
    width: 100%;
    height: 2px;
    background: white;
    position: relative;
    transition: all 0.3s ease-in-out; }
  .span-line:before, .span-line:after {
    content: "";
    display: block;
    width: 100%;
    height: 2px;
    background: white;
    position: absolute;
    transition: all 0.3s ease-in-out; }
  .span-line:before {
    margin-top: -7px; }
  .span-line:after {
    margin-top: 7px; }
  .nav-active .span-line {
    background: transparent; }
  .nav-active .span-line:before {
    margin-top: 0;
    -webkit-transform: rotate(45deg);
    transform: rotate(45deg); }
  .nav-active .span-line:after {
    margin-top: 0;
    -webkit-transform: rotate(-45deg);
    transform: rotate(-45deg); }
  /* Social icons fixed bottom */
  #social-fixed-pos {
    position: fixed;
    bottom: 0;
    width: 100%;
    height: 50px;
    background-color: #1c1b1b;
    display:flex;
    z-index: 9999;}
  .share-btn {
    display: block;
    color: #ffffff;
    border: none;
    width: 25%;
    height: 100%;
    outline: none;
    text-align: center;
    line-height: 50px;
    font-size: 20px; 
    box-shadow: 10px -5px 15px rgba(0,0,0,0.3); }
  .share-btn:hover {
    color: white; }
  .share-btn.facebook /*wpp*/{ background: #1cef22; }
  .share-btn.instagram /*inst*/ { background:   background: #f09433; 
background: -moz-linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%); 
background: -webkit-linear-gradient(45deg, #f09433 0%,#e6683c 25%,#dc2743 50%,#cc2366 75%,#bc1888 100%); 
background: linear-gradient(45deg, #f09433 0%,#e6683c 25%,#dc2743 50%,#cc2366 75%,#bc1888 100%); 
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#f09433', endColorstr='#bc1888',GradientType=1 );
  } }
  .share-btn.google-plus /*call*/ { background: #3ff7d5; }
 }


#header {
  background-repeat: no-repeat;
  background-attachment: scroll;
  background-position: center center;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

#header .txt-box {
  padding: 30px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border: 5px solid white;
}

@media(max-width: 450px) {
  #header .txt-box h1 {
    font-size: 25px;
  }
}

#header .scroll-btn a {
  display: block;
  width: 200px;
  height: 60px;
  background-color: #1c1b1b;
  text-align: center;
  line-height: 60px;
  text-decoration: none;
  color: white;
  font-size: 20px;
  margin-top: 20px;
}

.container {
  padding: 0;
}