body {
  width:100%;
  background:lightyellow;
  margin:0;
 
}
h1{
    text-align:center;

}
h4{
    font-size:18px;
    text-align:left;
    color: red;
    
}
p{
    font-size:15px;
    text-align:left;
    width:600px;
}
#container {
  width: 100%;
  margin: 0px;
  border: 1px solid black;
  box-sizing:border-box;
  background-size: cover;
  background:lightblue;
  height: 90%;
}
header {
  background: red;
  height: 50px;
  width: 100%;
  text-align: center;
  line-height: 50px;
  color: white;
  box-sizing:border-box;
}
* {
  margin: 0px;
  padding: 0px;
}
nav ul li {
  float: left;
  list-style: none;
  margin: 10px;
  line-height: 30px;
  box-sizing:border-box;
}
.clearfix {
  clear: both;
}
nav {
  background: lightcyan;
  height: 50px;
  border-bottom: 1px solid black;
  box-sizing:border-box;
}
#content {
  float: right;
  width: 80%;
  min-height: 550px;
  max-height:1150px;
 
  box-sizing:border-box;
}
#estado{
    text-align:center;
    font-size:20px;
    color:black;
}

#interruptor{
    width:150px;
    font-size:18px;
    color:black;
    margin-bottom:15px;
    padding:6px;
    background:white;
}
#id_targeta{
    width:150px;
    font-size:18px;
    color:black;
    margin-bottom:15px;
    padding:6px;
    background:white;
}
#equipo{
    width:150px;
    font-size:18px;
    color:black;
    margin-bottom:15px;
    padding:6px;
    background:white;
}
#text{
    width:80%;
    padding:5px;
    margin-top:30px;
    cursor:pointer;
    box-sizing:border-box;
}
aside {
  float: right;
  background: black;
  color:white;
  text-align:center;
  font-size:15px;
  width: calc(20%);
  min-height: 1050px;
  max-width:80%;
  box-sizing:border-box;
  
}

#boton{
    width:70%;
    padding:5px;
    background:blue;
    text-align:center;
    font-family:monospace;
    font-size:12px;
    margin-top:10px;
    cursor:pointer;
}
#Enviar{
    width:100px;
    padding:8px;
    background:blue;
    text-align:center;
    font-family:monospace;
    font-size:18px;
    margin-top:40px;
    cursor:pointer;
    color: white;
}
footer {
  background: black;
  color: white;
  text-align: center;
  height: 50px;
  line-height: 50px;
  box-sizing:border-box;
}
h3{
    text-align: center;
    color:black;
    font-size:40px;
}
h2{
    text-align: center;
    color:white;
    font-size:18px;
}
.article {
  color: black;
  margin-top:10px;
  margin-left: 50px; 
  margin-bottom: 60px;
  
  
  font-size:18px;
  
}
.article {
  font-size: 16px;
}
table{
    font-size:25px;
    text-align: center;
    margin:15px;
    background:lightgray;
}
@media(max-width:480){
    form{
        width:100%;
    }
    #boton{
        width:100%;
    }
    aside{
        width:100%;
    }
    .article{
        width:100%;
    }
    #content{
        width:100%;
    }
    h2{
        font-size:10;
    }
}