* {
  padding: 0;
  margin: 0;
  font-family: sans-serif;
}

footer {
  display: block;
  background: #000;
  padding: 15px;
}

footer p {
  display: block;
  text-align: center;
  font-size: 20px;
  color: #fff;
}

.singleBlock {
  display: block;
  padding: 15px;
  margin: 10px 0;
  background: rgba(206,206,206,0.5);
  text-align: justify;
}

.singleBlock h3 {
  display: block;
  font-size: 30px;
  margin-bottom: 10px;
}

.singleBlock p {
  display: block;
  font-size: 20px;
  margin-bottom: 20px;
}

.enlaceComun {
  display: inline-block;
  color: #278CDC;
  text-decoration: none;
  cursor: pointer;
}

.enlaceComun:hover {
  text-decoration: underline;
}

.singleTextInput {
  display: inline-block;
  padding: 15px;
  font-size: 20px;
  width: 90%;
  max-width: 500px;
}

.singleButton {
  display: inline-block;
  font-size: 20px;
  padding: 15px;
}