html{font-family: 'PT Sans', sans-serif; color: #000000; text-align: center;text-decoration: none; }
<link href=rel='stylesheet' type='text/css'>

{ box-sizing: border-box; margin: 0; padding: 0; border-radius: 0.5rem;text-decoration: none; }

nav{ width: 100%; background: rgb(67, 67, 67); border-radius: 0.5rem;}
nav ul{ padding: 0; margin: 0}
nav ul li{list-style-type: none;text-decoration: none;}
nav ul li a{background: #333; text-decoration: none; color:  rgb(67, 67, 67); display: block; padding: 20px}
nav .botones{padding: 1rem; position: relative; background:  rgb(31, 31, 31); height: 50px; border-radius: 0.5rem;}
nav .cruz{ position: absolute; top: 10px; right: 10px;}
nav .hamb{position: absolute; top: 10px; right: 10px;}
.vinculo{ text-align: center; color:  rgb(67, 67, 67); display: block;text-decoration: none; }
h1{text-decoration: none;}
h2{text-decoration: none;}
h3{text-decoration: none;}
h4{text-decoration: none;}
#destacada {width: 5%; float: right;}

nav1 {border-radius: 0.5rem;  width: 100%;text-decoration: none; }

body {max-width: 960px;margin: auto;text-decoration: none; }

.contenedor {  border-radius: 0.5rem; position: relative;text-decoration: none;}

header { padding: 1rem; display: block; border-radius: 0.5rem;background: none;text-decoration: none;}

a{font-family: 'PT Sans', sans-serif; color: #000000; text-align: center;text-decoration: none; }
header h1 {font-size: 5rem;text-decoration: none; color: #000000;}
a2{font-family: 'PT Sans', sans-serif; color: #e3e3e3; text-align: center;text-decoration: none; }
header h1 {font-size: 5rem;text-decoration: none; color: #000000;}



img { width:30%; ;
      object-position: center;
    border-radius: 200px;}
   

header nav ul {
    text-decoration: none;
    text-align: center;}

header nav ul li a {
    padding: 1rem;
    margin-top: 10px;
	display: inline-block;
    color:coral;
    text-decoration: none;
    font-size: 15rem;}

nav ul li a{text-decoration: none; 
    background: #c6c6c6;
    color:  #000;}

nav ul li a {text-decoration: none; 
    background: #000;
    color: #fff;
    font-weight: bold;}

main { margin-top: 2px;text-decoration: none;}

.cuerpo {text-decoration: none; background:#fff; text-align: center;}
  

footer{ text-align: center;
    padding: 10px;
    background:#333 ;
    height: auto;
    align-content: center;

}