* {
  padding: 0;
  margin: 0;
}

body {
  background-color: black;
  background-image: linear-gradient(black, #004d40);
  width: 100%;
  color: white;
  height: 1080px;
}

h3 {
  margin-bottom: -29px;
  align-items: center;
  top: 7px;
  position: relative;
}

img {
  height: 45px;
  display: none;
}

nav {
  background-color: rgb(0, 0, 0);
  right: 0%;
  position: relative;
}

nav a {
  float: right;
  display: inline-block;
  color: #009688;
  text-decoration: none;
  padding: 10px 20px;
  margin-right: 0px;
  font-family: Poppins;
}

nav a:hover {
  background-color: #00897b;
  color: white;
}

.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

a {
  margin: auto;
  color: #4db6ac;
  text-decoration: none;
}

h1 {
  margin-top: 5%;
}

header {
  width: 100%;
  height: 45px;
}

footer {
  margin-top: 30px;
  color: #00796b;
}

.button1 {
  border-radius: 12px;
  height: 75px;
  width: 95%;
  display: block;
  margin: 0 auto;
  background-color: #00796b;
  text-decoration: none;
}

.button1 a {
  color: black;
}
#mt {
  display: none;
}

#mt2 {
  display: none;
}
button {
  display: block;
  margin: 0 auto;
  background-color: #00796b;
  text-decoration: none;
  font-family: Poppins;
  font-size: 20px;
  margin-top: 20px;
  padding: 10px 20px;
  color: white;
}

button:hover {
  background-color: #004d40;
}
@media screen and (max-width: 698px) and (orientation: portrait) {
  nav {
    display: none;
  }

  #dt {
    display: none;
  }
  #mt {
    display: block;
  }
  #dt2 {
    display: none;
  }
  #mt2 {
    display: block;
  }
  button {
    display: none;
  }
}