:root {
  --width: 1000px
}

body {
  margin: 0;
  font-family: "Computer Modern Serif", sans-serif;
  background: #1A1A1A;
}

/* Hide scrollbar for Chrome, Safari and Opera */
body::-webkit-scrollbar {
  display: none;
}

/* Hide scrollbar for IE, Edge and Firefox */
body {
  -ms-overflow-style: none;  /* IE and Edge */
  scrollbar-width: none;  /* Firefox */
  overflow-y: scroll;
}

.header {
  height: 80px;
  color: white;
  background-color: #313131;
  font-weight: bold;
  font-size: 2rem;
  display: flex;
  justify-content: center; /* align horizontal */
  align-items: center; /* align vertical */
  border-radius: 0 0 15px 15px;
  padding-left: 10px;
  padding-right: 10px;
}

.intro {
  color: white;
  display: flex;
  font-size: 1.4rem;
  justify-content: center; /* align horizontal */
  align-items: center; /* align vertical */
  margin-top: 20px;
  margin-left: calc(max(calc((100% - var(--width))/2),10px));
  margin-right: calc(max(calc((100% - var(--width))/2),10px));
  line-height: 1.5;
}

.exlink{
  text-decoration: none;
  height: 50px;
  background-color: #705DF2;
  font-size: 1.5rem;
  color: white;
  font-weight: bold;
  display: flex;
  justify-content: center; /* align horizontal */
  align-items: center; /* align vertical */
  border-radius: 15px;
  margin-top: 20px;
  margin-left: calc(max(calc((100% - var(--width))/2),10px));
  margin-right: calc(max(calc((100% - var(--width))/2),10px));
  line-height: 1.5;
}

/* unvisited link */
.exlink:link {
  color: white;
}

/* visited link */
.exlink:visited {
  color: white;
}

/* mouse over link */
.exlink:hover {
  color: #1A1A1A;
}

.exlink:active {
  color: #1A1A1A;
}

@media only screen and (max-width:1000px) {
  .header {
    font-size: 1.2rem;
  }
  .exlink{
    font-size: 1.2rem;
  }
}