h1{
    font-size: 40px;
    font-family: 'Times New Roman', Times, serif;
    font-weight: bold;
}

h2{
    font-size: 20px;
    font-family: 'Times New Roman', Times, serif;
    font-weight: bold;
}
h3{
    font-size: 50px;
    font-family: 'Times New Roman', Times, serif;
    font-weight: bold;
}
header,section,footer,aside,nav,article hgroup{
    display: block
}
body {
    text-align: left;
}
.agrupar {
width: 960px;
margin:auto;
}
.blue {
    line-height: 70%;
    font-family: 'Times New Roman', Times, serif;
    text-align: center;
  }

.menu a {
    font-family: 'Times New Roman', Times, serif;
    list-style: none;
    padding: 10px;
    font: bold 14px verdana;
    display: inline-block;
}

.seccion{
    margin: 20px, 0;
    width: 60%;
    float: left;
}
article {
    background: #fffbcc;
    border: 1px solid #999;
    padding: 10px;
    margin-bottom: 10px;
}

article footer{
    text-align: right;
    margin-top: 10px;
    margin-bottom: 10px;
}
  .black {
    background: black;
    color:white;
    text-align: center;
    padding: 0px, 0;
    line-height: .5cm;
  }

  .columna {
      margin: 20px, 0;
      width: 30%;
      float: left;
  }
  .columna blockquote{
      border: 1px, solid, black;
      background: #fffbb9;
      margin-bottom: 15px ;
  }
  img {
      width: 60px;
  }
  .black {
      clear: both;
  }
  .menu {
    border: 1px solid #2e518b; /*anchura, estilo y color borde*/
    padding: 10px; /*espacio alrededor texto*/
    background-color: #2e518b; /*color botón*/
    color: #ffffff; /*color texto*/
    text-decoration: none; /*decoración texto*/
    text-transform: uppercase; /*capitalización texto*/
    font-family: 'Helveticat', sans-serif; /*tipografía texto*/
    border-radius: 50px; /*bordes redondos*/
    }
    
    .obj {
    border: 1px solid #2e518b; /*anchura, estilo y color borde*/
    padding: 10px; /*espacio alrededor texto*/
    background-color: #2e518b; /*color botón*/
    color: #ffffff; /*color texto*/
    text-decoration: none; /*decoración texto*/
    text-transform: uppercase; /*capitalización texto*/
    font-family: 'Helveticat', sans-serif; /*tipografía texto*/
    border-radius: 50px; /*bordes redondos*/
     display: table;
    }