boton sencillo ccss

a { margin: 1em 0; float: left; clear: left; }
a.boton {
   text-decoration: none;
   background: #EEE;
   color: #222;
   border: 1px outset #CCC;
   padding: .1em .5em;
}
a.boton:hover {
   background: #CCB;
}
a.boton:active {
   border: 1px inset #000;
}

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