body {
  margin: 0 auto;
  padding: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #ccc;
}

/* #principal {
  width: 1080px;
  margin: 0 auto;
}*/

.titulo {
  background-image: url(../images/bg-3.jpg);
  height: 500px;
  background-position: right center;
  background-size: cover;
  /* background-repeat: no-repeat;
  background-attachment: fixed; */
  color: #fff;
}

.titulo-principal {
  text-align: center;
  font-size: 20px;
  margin-top: 150px;
  /* text-transform: uppercase; */
  /* display: inline-flexbox; */
}
.titulo-principal h1 {
  font-size: 60px;
  text-transform: uppercase;
  text-shadow: 3px 3px 2px #333;
}

.titulo-principal h2 {
  font-size: 20px;
  background: rgba(0, 0, 0, 0.5);
  padding: 10px;
  display: inline-block;
  /* margin: auto; */
  /* width: 500px; */
  border-bottom: 3px solid #ccc;
  /* width: 300px; */
  /* text-align: center; */
  /* float: center; */
}
/* header nav {
   padding-top: 20px;
   float: right; 
   margin-top: 20px;
   display: inline; 
} */

.titulo nav ul {
  text-align: right;
  margin: 0px 10px 0 0;
}

.titulo nav li {
  display: inline-block;
  list-style: none;
  border: 1px solid white;
  margin: 10px 5px;
  padding: 10px;
  text-transform: uppercase;
  background: rgba(0, 0, 0, 0.5);
  /* float: right; */
}

header li a {
  text-decoration: none;
  color: #fff;
}

header nav li:hover {
  background: rgba(0, 0, 0, 0.7);
}

/* header h2 {
  border: 1px solid #fff;
  width: 380px;
} */

/* nav li {
   display: inline; 
   border: 1px solid blue; 
   background-color: gray; 
} */

main {
  width: 80%;
  margin: auto;
}

.section-one {
  background: #fff;
  padding: 10px;
  margin: 20px 20px;
  overflow: auto;
  /* float: left; */
  /* width: 100%; */
}

.card {
  width: 32%;
  /* display: inline-block; */
  /* border: 2px solid blue; */
  box-sizing: border-box;
  /* border: 1px solid black; */
  float: left;
  /* margin: 0px auto; */
  /* width: 100%; */
  /* margin-left: 10px; */
}

.card-1,
.card-2 {
  margin-right: 2%;
}

.card img {
  /* margin: auto; */
  /* margin-bottom: 0px; */
  width: 100%;
  /* border: 1px solid black; */
  /* position: static; */
  /* size: inherit; */
  display: block;
}

.card p {
  /* border: 1px solid black; */
  background: #333;
  /* margin-top: -4px; */
  /* line-height: 30px; */
  margin: 0;
  color: #fff;
  padding: 10px;
  text-transform: uppercase;
  font-size: 14px;
}
.section-two {
  clear: both;
  background: #fff;
  padding: 15px;
  margin: 10px 20px;
}

.section-two h2 {
  margin-top: 5px;
  background: #dddddd;
  border-bottom: 1px solid gray;
  padding: 10px 15px;
}

footer {
  background-color: gray;
  padding: 30px;
  color: #fff;
  text-align: center;
  text-shadow: 3px 3px 2px #333;
}