/*
	Custom CSS
	Please make sure your CSS rules are 
	more particular / have higher priority
	then other page styles
*/
 #events h3   {
	/* add your css rule here */
}


 #events p.duration, #events div.duration   {
	/* add your css rule here */
}


 #events p.description, #events div.description   {
	/* add your css rule here */
}


 #events .selectedEvent   {
	/* add your css rule here */
}


 #events input.reserve_time_btn   {
	/* add your css rule here */
}


 #events input.select_another_btn   {
	/* add your css rule here */
}


 #eventForm #start_date-block-container h3, #eventForm #timeline-container h3   {
	/* add your css rule here */
}


 #eventForm #save_button   {
	/* add your css rule here */
}


 div.ui-widget-content   {
	/* add your css rule here */
}


 div.ui-widget-header   {
	/* add your css rule here */
}


 #timeline-container table.timeline   {
	/* add your css rule here */
}


 .timeline td.not_worked_time   {
	/* add your css rule here */
}


 .timeline td.free_time   {
	/* add your css rule here */
}


 .timeline td.selected_time   {
	/* add your css rule here */
}


 .timeline td.reserved_time   {
	/* add your css rule here */
}


 div#loading   {
	/* add your css rule here */
}


 #start_date-block-container .zend_form dt, start_date-block-container .zend_form dt b, start_date-block-container .zend_form dd label   {
	/* add your css rule here */
}

/* Hide the Booking tab from the top navigation */
.nav-menu li a[href*="booking-page"] {
    display: none !important;
}

<p style="text-align:center; margin-top: 20px;">
  <a href="/user/login" class="btn" style="background:#ffffff; color:#000; padding:10px 20px; border-radius:5px; text-decoration:none;">
    Member Login
  </a>
</p>

/* Hide the homepage "BOOK NOW" button */
.hero .btn,
.hero a[href*="booking-page"],
button[href*="booking-page"],
a.btn[href*="booking-page"] {
    display: none !important;
}

<p style="text-align:center;">
  <a href="/user/login" class="btn" style="background:#ffffff;color:#000;padding:10px 20px;border-radius:5px;text-decoration:none;">
    Member Login
  </a>
</p>


/* Attempt to target the BOOK NOW button in hero/banner section */
.hero a.btn,
.hero .btn,
a[href*="booking-page"].btn,
button[href*="booking-page"],
.main-content .btn,
a[href*="booking-page"] {
    display: none !important;
    visibility: hidden !important;
    pointer-events: none !important;
    opacity: 0 !important;
}

button:contains("BOOK NOW"),
a:contains("BOOK NOW") {
    display: none !important;
}

/* Hide the BOOK NOW button in the hero section */
.hero .btn,
.hero a.btn,
.hero a[href*="booking-page"] {
    display: none !important;
    visibility: hidden !important;
    pointer-events: none !important;
    opacity: 0 !important;
}

/* Aggressively target and remove the "Book Now" button on the homepage hero */
.hero a.btn[href*="booking-page"],
.hero .btn[href*="booking-page"],
a.btn[href*="booking-page"],
button[href*="booking-page"],
a[href*="booking-page"]:not(.nav-menu a) {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
    height: 0 !important;
    width: 0 !important;
    overflow: hidden !important;
    position: absolute !important;
}

/* Hide homepage BOOK NOW button by theme-specific targeting */
.hero .btn[href*="booking-page"],
.hero .btn-book-now,
.hero a.btn,
.hero a[href*="booking"],
button[href*="booking"],
a[href*="booking"] {
    display: none !important;
    visibility: hidden !important;
    pointer-events: none !important;
    opacity: 0 !important;
    height: 0 !important;
    width: 0 !important;
    position: absolute !important;
}

<p style="text-align:center;">
  <a href="/user/login" class="btn" style="background:#fff; color:#000; padding:10px 25px; border-radius:5px; text-decoration:none;">
    Member Login
  </a>
</p>

<a href="/user/login">Login to Book</a>