<style>
.button {
  background: #c62d1f;
  background-image: -webkit-linear-gradient(top, #c62d1f, #f24437);
  background-image: -moz-linear-gradient(top, #c62d1f, #f24437);
  background-image: -ms-linear-gradient(top, #c62d1f, #f24437);
  background-image: -o-linear-gradient(top, #c62d1f, #f24437);
  background-image: linear-gradient(to bottom, #c62d1f, #f24437);
  -webkit-border-radius: 18;
  -moz-border-radius: 18;
  border-radius: 18px;
  text-shadow: 0px 1px 0px #810e05;
  -webkit-box-shadow: 3px 4px 0px 0px #8a2a21;
  -moz-box-shadow: 3px 4px 0px 0px #8a2a21;
  box-shadow: 3px 4px 0px 0px #8a2a21;
  font-family: Arial;
  color: #ffffff;
  font-size: 44px;
  padding: 12px 30px 12px 30px;
  border: solid #d02718 1px;
  text-decoration: none;
}

.button:hover {
  color: #ffffff;
  background: #f24437;
  text-decoration: none;
}


.button1 {
  background: #599bb3;
  background-image: -webkit-linear-gradient(top, #599bb3, #408c99);
  background-image: -moz-linear-gradient(top, #599bb3, #408c99);
  background-image: -ms-linear-gradient(top, #599bb3, #408c99);
  background-image: -o-linear-gradient(top, #599bb3, #408c99);
  background-image: linear-gradient(to bottom, #599bb3, #408c99);
  -webkit-border-radius: 8;
  -moz-border-radius: 8;
  border-radius: 8px;
  text-shadow: 0px 1px 0px #3d768a;
  -webkit-box-shadow: 0px 10px 14px -7px #276873;
  -moz-box-shadow: 0px 10px 14px -7px #276873;
  box-shadow: 0px 10px 14px -7px #276873;
  font-family: Arial;
  color: #ffffff;
  font-size: 44px;
  padding: 12px 30px 12px 30px;
  text-decoration: none;
  margin:0 100px 0 100px;
}

.button1:hover {
  color: #ffffff;
  background: #408c99;
  text-decoration: none;
}

</style>
<div style ="margin-top:15px"></div>
<div style ="margin:0 auto; width:950px; height:100px;">
<input onclick="window.open('http://www.baidu.com','_blank');" type="button" class="button" value="点击注册">
<input onclick="window.open('http://www.baidu.com','_blank');" class="button1" type="button" value="点击登录">
<input onclick="location.href='tencent://message/?uin=11865';" class="button" type="button" value="联系客服">
</div>