How can I insert a link into this button code?

[diligentsamuel]

<style>
#dg-go-checkout {
margin:15px 0;
width:100%;
color: #111 !important;
background: #000000 !important;
background: linear-gradient(#ffe6a8, #e2b43f) !important;
border-color: #a88734 #9c7e31 #846a29 !important;
border-radius: 4px !important;
}
#dg-go-checkout:hover { opacity:0.9; }
</style>

<button class="btn btn-primary" id="dg-go-checkout" style="
height: 46px;
margin-top: 0px;
margin-bottom: 0px;
">Buy💰</button>

tat is the code i used to insert another buy button but i do not know where to insert the link i need . i have trial but not working please can anybody help out.

i need this button to link to another site