#contenedor{
    background: linear-gradient(135deg, #69DADB , #1597E5,#113CFC);
    width: 100%;
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
    outline-style: none;

}

.title{
    text-align: center;
    font-size: 3em;
    color:#800080;
}
div{
    border-style: none;
    border-radius: 25px;
    padding: 25px;
    
}
#margin{
    border-style: solid;
    border-color: white;
    border-radius: 15px;
    padding: 15px;
    margin-top: 15px;
    color:#800080;
}
* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
  }
  header {
    background: linear-gradient(135deg, #69DADB , #1597E5,#113CFC);
    width: 100%;
    clear: both;
    content:'';
    display: table;
    border-radius: 20px;
  }
  
  .menu {
    width: 900px;
    margin: 0 auto;
  }
  
  nav {
    float: right;
  }
  
  nav ul li {
    list-style: none;
    margin-left: 75px;
    padding: 12px 0;
    float: left;
    position: relative;
  }
  
  nav ul li a {
    text-decoration: none;
    color: #444;
    font-weight: bold;
  }
  
  nav ul li a::before {
    display: block;
    content: '';
    width: 0%;
    background: #444;
    height: 5px;
    top:0;
    position: absolute;
    transition: width 0.2s;
  }
  
  nav ul li a:hover::before {
    width: 100%;
  }
  img {
    width: 120px;
    height: 80px;
    float: left;
  }