Hi! I am having a very similar issue. See below for CSS:
.module-announcement-bar {
padding: 0;
}
.module-announcement-bar a {
flex-grow: 1;
text-align: center;
padding: 7px 5px;
text-transform:uppercase;
}
.module-announcement-bar .btn {
background-color: #ff9500;
border-radius: 0px;
word-wrap: break-word;
white-space: normal;
border: 8px solid#db8000;
margin: 0px;
box-shadow: none;
&:hover
{
background-color: #db8000;
}
}