Hi Anita,
To show text in place of the icon, add following CSS under Custom > CSS in the Customizer:
.x-btn-widgetbar {
border-width: 40px;
}
.x-btn-widgetbar i {
top: -25px;
right: -33px;
color: #fff;
font-weight: bold;
}
.x-btn-widgetbar i:before {
content: 'LOGIN';
}
Replace LOGIN with the text you want to show.
Thank you!