I had the same problem I used the code snippet shown below.
It’s make the list a service button like this.
But I don’t know how to do the same for post a request button.
If anybody knows please help me.
Thank you
.hp-menu--site-header button span{
display: inline !important;
}
.hp-menu--site-header button i:first-child{
margin-right: 0.5rem !important;
}