.container {
  width:1080px;
  margin:0px auto;
  font-size:1em;
  font-family: "Arial", Georgia, Serif;
  font-size: 15px;
}
header {
  text-align:center;
  border: 1px solid #666;
  background: #cccccc;
}
a {
  color: #333;
  text-decoration: none;
}
section,aside {
  margin-top: 5px;
  padding: 10px;
  -moz-border-radius:3px;-webkit-border-radius:3px;-o-border-radius:3px;border-radius:3px;
}
section {
  float: left;
  width: 70%;
  background: #fafafa;
  border: 1px solid #ccc;
}
aside {
  float: right;
  width: 25%;
  background:#ccc;
  color: #333;
}
nav {
  padding:0.2%;
  background:#f06156;
  margin-top: 0.5%;
}
nav ul {
  list-style-type:none;
  padding:0px;
  width: 100%;
  display: table;
  text-align: center;
}
nav ul li {
  display: inline;
}
nav ul li:hover {
  background-color: #ccc;
  text-decoration: underline;
}
nav ul li a {
 display:inline-block;
 text-align:center;
 text-decoration:none;
 color: #75302a;
 font-weight: bold;
  padding:6px 15px;
  margin:2px;
  background:#fafafa;
  -moz-border-radius:3px;-webkit-border-radius:3px;-o-border-radius:3px;border-radius:3px;
}
footer {
  position: fixed;
  width: 100%;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 10px 0px 10px 0px;
  background-color: #333;
  text-align: center;
}
footer a {
  color: #fff;
}

h2 {
  color: #f06156;
}
/* pantalla maximo 980px */
@media screen and (max-width:980px) {
  .container {
    width:98%;
  }
  section {
    width:68%;
  }
}
 
/* pantalla maximo 700px */
@media screen and (max-width:700px) {
  aside,section {
    float:none;
    width:96%;
    font-size:1.2em;
  }
  nav, section {
    font-size:1.2em;
  }
  aside {
    margin-top:5px;
    background:#333;
    color: #fff;
  }
  nav ul {
    float:none;
    clear:both;
  }
}
 
 
/* pantalla maximo 480px */
@media screen and (max-width:480px) {
  aside {
    display:block;
    background:#333;
    color: #fff;
    font-size:1.5em;
  }
  nav, section {
    font-size:1.5em;
  }
  section {
    width:94%;
  }
  nav ul {
    display: table;
    text-align: center;
    float: none;
    width:100%;
  }
  nav ul li {
    float:none;
  }
}
.info_clases{
  display: inline-block;

  background-color: beige;
  width: 200px;
  height: auto;
  padding: 10px;
  margin-left: 35px;
  margin-bottom: 5px;
  overflow: hidden;
  box-sizing: border-box;
  }
   h3 {
  font-size:14px;
  padding: 5px;
  color:#333;
  background-color: pink;
  text-align: center;
  }
  input,select,textarea {
  width: 300px;
  margin-left: 200px;
  margin-bottom: 5px;
  box-sizing: border-box;
  padding: 10px;
  display: block;
  border:3px solid green;
}
.titulo1{
  background-color: green;
  padding: 10px;
  font-weight: bold;
  text-align: center;
}
.mi-estilo {
  background-color: beige;
  color: black;
  text-decoration: underline;
  font-size: 16px;
  font-weight: bold;
  padding: 15px;
}
 .datos_pacientes{
  background-color: brown;
  padding: 20px;
  margin: 10px;
 }
 #recetas{
  height: auto;
 }