@import 'bourbon/bourbon';
@import 'vendor/bi-app/bi-app-ltr'; // set the layout for left to right languages
@import 'build-course'; // shared app style assets/rendering

@import 'bourbon/bourbon';
@import 'vendor/bi-app/bi-app-ltr'; // set the layout for left to right languages
@import 'build-course'; // shared app style assets/rendering

.dates-banner {
    .upgrade-button {
        button {
            display: block;
            border-radius: 2px;
            border: solid 1px #0175b4;
            background: white;
            color: #2d323e;
            font-size: 14px;
            font-weight: bold;
            line-height: 24px;
            padding: 7px 18px;

            &:hover,
            &:focus,
            &:active {
              cursor: pointer;
              box-shadow: 0 2px 1px $shadow;
            }
        }
    }
}

Add styling for courseware dates banner button
Add styling for courseware dates banner button
