Adding embedded UPS shipping label button

Good day everyone!

I’m working on a client portal and would like to add a embedded button that takes clients to our companies UPS shipping label guest portal. We were able to add it to our website however I’m not sure how to add it to the portal. The code below is what worked on our website. (i had to remove some formatting to show the code text - sorry if this is horrible practice for discussing code…I am not versed in anything related to coding)

form method=“POST” target=“NEW” action=“Error”>
input type=“hidden” name=“Company” value=“******==”/>
input type=“submit” value=“Click Here to Ship”/>

form {
font-family: Arial, sans-serif;
font-size: 14px;
} input[type=“submit”] {
background-color: #0072C6;
color: #fff;
font-size: 16px;
border: none;
border-radius: 4px;
padding: 10px 20px;
cursor: pointer;