*{ margin:0;
}
html {
  background: rgb(2,0,36);
background: linear-gradient(90deg, rgba(2,0,36,1) 0%, rgba(9,9,121,1) 35%, rgba(23,65,141,1) 61%, rgba(83,102,170,1) 88%);
}
h1{color:pink;}
#cabezera{
width:100%;
 height:8%;
 background: rgb(2,0,36);
background: linear-gradient(90deg, rgba(2,0,36,1) 0%, rgba(76,222,149,1) 35%, rgba(23,6,141,1) 61%; rgba(83,170,118,1) 88);
}
img{
  display:block;
  margin: 0 auto;
  width:70%
}
#contenedor {
  
  
  margin: 0 auto;
  width: 70%
  height:800%;
  
  background:red;
}
 ul{
  list-style: none;
  
}
ul li a{
  text-decoration: none;
  color:#33E8DF
}