button{
  color:Black; 
  width:100%;
  background-color:Pink;
  font:2.0em Futura, 'Century Gothic', AppleGothic, sans-serif;
  padding:14px;
  border:1px solid #000000;
  -moz-border-radius:10px;-webkit-border-radius:10px;border-radius:10px; /*redondea*/
  border-bottom:1px solid #9f9f9f; /*Color borde bajo da aspecto 3d*/
  -moz-box-shadow:inset 0 1px 0 rgba(255,255,255,0.5);-webkit-box-shadow:inset 0 1px 0 rgba(255,255,255,0.5);box-shadow:inset 0 1px 0 rgba(255,255,255,0.5);
  cursor:pointer;
}
.B1{background-color:#C22327; color:#ffffff;}
.B2{background-color:#F47339; color:#ffffff;}
.B3{background-color:#FCB632; color:#ffffff;}
.B4{background-color:#047878; color:#ffffff;}
.B5{background-color:#801738; color:#ffffff;}
.Verde{background-color:LightGreen;color:black;border:1px solid green;}