Come inserire in un sito un bottone html con questo stile CSS ? Non so come collegare i due codici :(

[fifacoinsea]

Salve a tutti,
premetto che non so niente di CSS , ho un sito wordpress e desidero inserire in una pagina un bottone, attraverso un sito ho creato il bottone con il corrispondente codice CSS

.button {
   border: 2px solid #a60f0f;
   background: #3e779d;
   background: -webkit-gradient(linear, left top, left bottom, from(#65a9d7), to(#3e779d));
   background: -webkit-linear-gradient(top, #65a9d7, #3e779d);
   background: -moz-linear-gradient(top, #65a9d7, #3e779d);
   background: -ms-linear-gradient(top, #65a9d7, #3e779d);
   background: -o-linear-gradient(top, #65a9d7, #3e779d);
   background-image: -ms-linear-gradient(top, #65a9d7 0%, #3e779d 100%);
   padding: 13px 26px;
   -webkit-border-radius: 12px;
   -moz-border-radius: 12px;
   border-radius: 12px;
   -webkit-box-shadow: rgba(255,255,255,0.4) 0 0px 0, inset rgba(255,255,255,0.4) 0 1px 0;
   -moz-box-shadow: rgba(255,255,255,0.4) 0 0px 0, inset rgba(255,255,255,0.4) 0 1px 0;
   box-shadow: rgba(255,255,255,0.4) 0 0px 0, inset rgba(255,255,255,0.4) 0 1px 0;
   text-shadow: #7ea4bd 0 1px 0;
   color: #08053b;
   font-size: 24px;
   font-family: helvetica, serif;
   text-decoration: none;
   vertical-align: middle;
   }
.button:hover {
   border: 2px solid #0000eb;
   text-shadow: #7ea4bd 0 1px 0;
   background: #3e779d;
   background: -webkit-gradient(linear, left top, left bottom, from(#5c9cc4), to(#3e779d));
   background: -webkit-linear-gradient(top, #5c9cc4, #3e779d);
   background: -moz-linear-gradient(top, #5c9cc4, #3e779d);
   background: -ms-linear-gradient(top, #5c9cc4, #3e779d);
   background: -o-linear-gradient(top, #5c9cc4, #3e779d);
   background-image: -ms-linear-gradient(top, #5c9cc4 0%, #3e779d 100%);
   color: #ff0000;
   }
.button:active {
   text-shadow: #183140 0 1px 0;
   border: 2px solid #0a3c59;
   background: #65a9d7;
   background: -webkit-gradient(linear, left top, left bottom, from(#3e779d), to(#3e779d));
   background: -webkit-linear-gradient(top, #3e779d, #65a9d7);
   background: -moz-linear-gradient(top, #3e779d, #65a9d7);
   background: -ms-linear-gradient(top, #3e779d, #65a9d7);
   background: -o-linear-gradient(top, #3e779d, #65a9d7);
   background-image: -ms-linear-gradient(top, #3e779d 0%, #65a9d7 100%);
   color: #fff;
   }

potrei sapere da voi l'esatto codice da inserire nella pagina per avere il bottone, il codice html sarebbe questo

<a href='#' class='button'>Ricarica Account</a>

Ma non so proprio come collegare i due linguaggi tra loro
Grazie a tutti.