Посилання

<style>a {display: inline-block; 
        padding: 2px; 
        outline: 0; 
         border: 1px solid transparent; -moz-border-radius: 5px 5px 5px 5px; -webkit-border-radius: 5px 5px 5px 5px; border-radius: 5px; -webkit-transition: box-shadow 0.7s ease, background 0.7s ease, border 0.7s ease; -moz-transition: box-shadow 0.7s ease, background 0.7s ease, border 0.7s ease; -o-transition: box-shadow 0.7s ease, background 0.7s ease, border 0.7s ease; transition: box-shadow 0.7s ease, background 0.7s ease, border 0.7s ease;
} 
a:hover { 
         background: #; border: 1px solid #ffffff; text-decoration: none; text-shadow: none; -moz-box-shadow: 1em 1em 1em -0.5em rgba(0,0,6,0.5); -webkid-box-shadow: 1em 1em 1em -0.5em rgba(0,0,6,0.5); box-shadow: 1em 1em 1em -0.5em rgba(0,0,6,0.5); }
 }
  </style>