To add text you would edit templates > main.php
To modify the style you would edit the relevant css file to the skin style you have set as default (style.css , cubecart.style01blue.css, cubecart.style01mint.css ect...) or if you have a cubecart.custom.css file you can add the following to it
.page-head-bar {
background-color: #3c3241;
margin-bottom: 10px;
}
.page-head-bar .page-head-bar-links{
float:right;
}
.page-head-bar .page-head-bar-links .parent-link {
display: inline-block;
padding: 5px 10px;
color: #3c3241;
background-color: #cddc39;
font-size: 12px;
border-left: 1px solid #3c3241;
border-right: 1px solid #3c3241;
margin-left: -1px;
}
.page-head-bar .page-head-bar-links .parent-link:hover,
.page-head-bar .page-head-bar-links .parent-link:focus{
text-decoration: none;
background-color: #bcca35;
color: #ffffff;
border-left: 1px solid #bcca35;
border-right: 1px solid #bcca35;
}
.page-head-bar .page-head-bar-links .dropdown {
display: inline-block;
}
.page-head-bar .page-head-bar-links .dropdown .dropdown-menu{
border-radius: 0px 0px 1px 1px;
margin-top: 0px;
border: 0px;
padding: 0px 0px 0px 0px;
box-shadow: 1px 2px 8px #323232;
}
.page-head-bar .page-head-bar-links .dropdown .dropdown-menu li a {
padding: 5px 15px;
color: #555555;
}
.page-head-bar .page-head-bar-links .dropdown .dropdown-menu li a:hover,
.page-head-bar .page-head-bar-links .dropdown .dropdown-menu li a:focus{
background-color: #bcca35;
color:#ffffff;
}
then modify the style to suit your needs.
You will need to clear the site cache if you have the cache enabled to see css changes