*{
   box-sizing: border-box;
 }
 
 
 
 
 body{
    background-color: chartreuse;
    
 }
 /* soy un comentario dfdfdfdfdfdfdfdfdfdfdffd
   dfdfdfdfd */

 h1{ 
   width: 50%;
   margin: 20px auto;
   padding: 50px 10px 15px 100px;
   text-align: center;
   font-size: 3.6em; 
   color: red;
   background-color: blue;
   border: 15px double pink;
   border-left: 10px solid red;
   outline: 20px groove red;
   text-decoration: underline overline;


 }

  h2{ 
   width: 50%;
   margin: 20px auto;
    text-align: center;
    font-size: 2em; 
    color: red;
    background-color: blue;


 }



#uno{
   width: 40%;
   color: white;
   font-size: 2em;
   background-color: red;
   text-decoration: none;
   border-radius: 50px;
 }


.dos{
   width: 60%;
   color: white (49, 25, 15);
   font-size: 2em;
   background-color: black;
   text-decoration: underline;
 }
 
 h1:nth-child{
   width: 40%;
   color: white;
   font-size: 2em;
   background-color: red;
   text-decoration: none;
   border-radius: 50px;

 }