body {
  font-family: "Roboto", sans-serif;
  margin: 0 auto;
  padding: 0;
  background-color: rgb(208, 196, 196);

}

.container {
  max-width: 1450px;
  margin: 20px auto;
  padding: 20px;
  background-color: #ffffff;
  border-radius: 5px;
  overflow-y: auto;
}

h1,
h2,
h3,
h4 {
  color: black;
  text-align: center;
}

h1 {
  font-size: 38px;
  margin-bottom: 18px;

}

h2 {
  font-size: 32px;
  margin-bottom: 17px;
}

h3 {
  font-size: 26px;
  margin-bottom: 12px;
}

h4 {
  font-size: 22px;
  margin-bottom: 7px;
}

p,
li {
  font-size: 18px;
  line-height: 1.6;
}

a {
  color: blue;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

span {
  color: red;
}


.change_color {
  color: red;
}