<div class="right"><div class="button"><a class="go-button green" href="<?php echo $checkout; ?>"><span>SHOP</span></a></div>
            </div>
                <div class="center"><div class="button"><a class="go-button green" href="<?php echo $continue; ?>"><span>SHOP 2</span></a></div>
            </div>

div.button {
    display: inline-block;
  -webkit-border-radius: 4px;
  -moz-border-radius: 4px;
  border-radius: 4px;
  -webkit-transition: all 0s 0;
  -moz-transition: all 0s 0;
  -ms-transition: all 0s 0;
  -o-transition: all 0s 0;
  transition: all 0s 0;
  text-shadow: 0px -1px 0px #42af92;
  padding: 5px 15px;
  margin: 5px 0px;
  color: #fff !important;
  font-weight: 100;
  font-style: normal;
  cursor: pointer !important;

}

a.go-button {
    height: 35px;

/../

<div class="input cf">
                        <input type="submit" name="reg-submit" id="reg-submit" value="Kaydı Tamamla" class="button">
                    </div>

div.button, #reg-submit {
display: inline-block;
-webkit-border-radius: 4px;
-moz-border-radius: 4px;
border-radius: 4px;
-webkit-transition: all 0s 0;
-moz-transition: all 0s 0;
-ms-transition: all 0s 0;
-o-transition: all 0s 0;
transition: all 0s 0;
text-shadow: 0px -1px 0px #42af92;
padding: 5px 15px;
margin: 5px 0px;
color: #fff !important;
font-weight: 100;
font-style: normal;
cursor: pointer !important;

}

input[type="submit"], button{
  background:#002147  0px 0px repeat-x;
  border-radius:4px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.5);
  border:1px solid #304764;
  color:#FFF;cursor:pointer;
  font:bold 12px Helvetica,Arial,sans-serif;
  line-height:normal;
  margin-right:6px;
  padding:6px 8px;
  text-decoration:none;
  text-shadow:2px 2px 2px rgba(0,0,0,0.25);
  width:auto;
  overflow:visible;
}

input[type="submit"]:hover, input[type="submit"]:focus,
button:hover, button:focus{
  background-position: 0px -40px;
  border-color:#46494D;cursor:pointer;
}

input[type="submit"][disabled], button[disabled]{
  background-color:#304764;
  background-position: 0px -40px;
  border-color:#333;
  color:#DDD;
}

input[type="submit"]:focus, button:focus{
  outline :#000 dotted 1px9;
}