keeweb/app/styles/utils/_back-button.scss

.back-button {
    cursor: pointer;
    position: absolute;
    top: 0;
    right: $base-padding-h;
    padding: $base-padding-v * 2 0 1px 0;
    z-index: 1;
    &__post {
        vertical-align: bottom;
        margin-left: $tiny-spacing;
        margin-right: $small-spacing;
    }
}