/* estilos para el header */
header{
  height: 100px;
  background-color: rgb(243, 180, 6);
}

header figure{
  position: absolute;
  float: left;
}

header img{
  margin: 20px 0;
  width: 200px;
  height: 60px;
}

.title{
  text-align: center;
}

header h1{
  font-size: 40px;
  line-height: 100px;
  display: inline;
  text-align: center; 
}

/* estilos para la sección del nav */
nav{
  background: black;
  height:50px ;
}

nav ul{
  list-style:none;
  float: right;
}

nav ul li{
  text-align: center;
  display: inline;
  line-height: 50px; 
  padding: 16px 10px; 
}

nav ul li:hover{
  background-color: rgb(255, 242, 64);
  color:black;
  padding: 16px 10px;
}

nav li a{
  color: rgb(255, 242, 64);
  text-decoration: none;
  padding: 16px 10px;
}

nav li a:hover{
  color:black;
  padding: 16px 10px;
}

/* estilos para el la sección del main */
section {
  margin: 50px 0;
  height: 100vh;
}

#reto-1 h2, #reto-2 h2{
  color: rgb(88, 88, 86);
  margin: 20px 0;
}

.container-demo{
  background-color: rgb(245, 244, 235);
  border-radius: 5px;
  margin: 0 200px;
  padding: 20px 0;
}

.container-ejm p{
  margin: 10px 0 0 0;
}

.container-ejm{
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.code-ejm {
  text-align: center;
  background-color: rgb(46, 45, 45);
  width: 600px;
  border-radius:5px;
  height:50px;
  line-height: 50px;
  color: cornsilk;
}

.code-ejm span{
  color: rgb(248, 8, 68);
}

.span1 em{
  color: teal;
}

.container-button{
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.container-button button{
  background: transparent;
  outline: none;
  border:1px solid rgb(255, 174, 0);
  background-color: rgb(253, 209, 10);
  border-radius: 5px;
  margin: 20px 0;
  padding: 10px 15px;
  font-weight: bold;
}

.container-result{
  border: 2px solid rgb(255, 174, 0);
  height: 30px;
  margin: 30px;
  padding: 0 10px;
  text-align: center;
  line-height: 30px;
  color: rgb(255, 174, 0);
  font-weight: bold;
}

.container-button button:hover{
  background-color: black;
  font-weight: bold;
  color: white;
}

/* estilos para el footer */
footer{
  background-color: black;
  position: fixed;
  z-index: 1000;
  bottom: 0;
  left: 0;
  right: 0;
  text-align: center;
  color: white;
  line-height: 70px;
}

footer a{
  position: relative;
  float: right;
  color: white;
  font-size: 20px;
  line-height: 70px;
  text-decoration: none;
}

footer a:hover{
  color: rgb(255, 174, 0);
}