b8749ace3d228c7b80f77948c523119c656051ea
lrnassar
  Mon Jan 20 12:02:40 2025 -0800
Added some subtle lines to help visually divide the different workthrough sections. Refs #30335

diff --git docs/gb101.md docs/gb101.md
index b2889b9..7373822 100644
--- docs/gb101.md
+++ docs/gb101.md
@@ -78,30 +78,31 @@
 <div class="col-md-6">
 
 The navigation bar at the top of the page will allow you to access our tools, downloads, and help pages.
 
 There are five main drop-downs that are useful for most users:
 
 - Genomes - switch between the many genomes available.
 - Genome Browser - configure, search for tracks, and reset the Genome Browser back to the default settings.
 - Tools - access to features such as [BLAT](../cgi-bin/hgBlat), [isPCR](../cgi-bin/hgPcr), and [LiftOver](../cgi-bin/hgLiftOver). The [Table Browser](../cgi-bin/hgTables) can also export track data in various file formats.
 - My Data - create stable short links ([Sessions](../cgi-bin/hgSession)) and visualize your own data via [custom tracks](../cgi-bin/hgCustom) or [track hubs](../cgi-bin/hgHubConnect).
 - Help - access contact information, FAQs, and Browser Documentation.
 
 </div>
 </div>
 
+---
 ### Using the Search Box
 
 <div class="row">
 <div class="col-md-6">
 
 The search bar allows you to navigate to a region on the genome using [genome coordinates](https://genome-blog.soe.ucsc.edu/blog/2016/12/12/the-ucsc-genome-browser-coordinate-counting-systems/),
 [gene symbols](https://genome.ucsc.edu/FAQ/FAQgenes.html#genename),
 [rsIDs](https://www.ncbi.nlm.nih.gov/snp/docs/RefSNP_about/#what-is-a-reference-snp),
 [HGVS](http://varnomen.hgvs.org/) terms, or DNA sequence. You can even
 search documentation and FAQ pages using this search bar. A few example queries
 are:
 
 - chr1:127140001-127140001
 - SOD1
 - rs2569190
@@ -116,175 +117,181 @@
 
 Please note, [BLAT](https://genome.ucsc.edu/goldenPath/help/hgTracksHelp.html#BLATAlign)
 is used if your search term is a DNA sequence. For the best
 results, make sure your sequence is long enough to meet BLAT specifications.
 The [examples](https://genome.ucsc.edu/goldenPath/help/query.html)
 link next to the search bar contains even more search queries.
 
 </div>
 <div class="col-md-6">
 
 <img src="../images/GeneSearch.jpg" alt="Genome selection" style="max-width:100%;">
 
 </div>
 </div>
 
+---
 ### Highlights and Zooming
 
 <div class="row">
 <div class="col-md-6">
 
 ```image
 src=../images/highlightZoomGif.gif
 width=100%
 ```
 
 </div>
 <div class="col-md-6">
 
 Dragging the Genome Browser image performs different tasks depending on where and how you click the image.
 
 Click-and-Drag the ruler at the top of the image will bring up a menu to zoom
 into or highlight the region. Click-and-Drag anywhere else on the Genome
 Browser image to scroll to the left or right.
 
 Alternatively, you can:
 
 - Hold **Alt+drag** or **Option+drag** to highlight
 - Hold **Ctrl+drag** or **Cmd+drag** to zoom
 
 </div>
 </div>
 
-
+---
 ### Configuring Data Track Display
 
 <div class="row">
 <div class="col-md-6">
 
 Clicking on the rectangle box next to a track is an easy way to go to that
 track's settings page quickly.
 
 [Right-clicking](../goldenPath/help/hgTracksHelp.html#RIGHT_CLICK_NAV)
 on the track will also bring up a menu to change the display
 mode, configure a track, or view a PNG image of the current window.
 
 </div>
 <div class="col-md-6">
 
 ```image
 src=../images/rightClickAndGreyBarGif.gif
 width=95%
 ```
 
 </div>
 </div>
 
+---
 ### Track Display Modes
 
 <div class="row">
 <div class="col-md-6">
 
 <!--
 <img> here
 -->
 
 </div>
 <div class="col-md-6">
 
 Annotation tracks can be entirely hidden or shown in four different ways that
 take an increasing amount of vertical space: 
 [dense, squish, pack, and full](../goldenPath/help/hgTracksHelp.html#TRACK_CONT).
 
 *Pack display is the recommended visibility for most data types as it provides
 the best balance of information and space.*
 
 After changing a track's display mode, the change will not be applied until you
 refresh the page. You can either refresh the page manually using your web
 browser or click <button>refresh</button> on any of the track groups.
 
 </div>
 </div>
 
+---
 ### Searching for Data Tracks
 
 <div class="row">
 <div class="col-md-6">
 
 Having trouble finding a dataset for your genome assembly? The 
 [Track Search](../cgi-bin/hgTracks?hgt_tSearch=track+search)
 feature allows searching for terms in track names, descriptions, groups, and
 ENCODE metadata.
 
 More information about <button>track search</button> can be found on the following
 [help page](../goldenPath/help/trackSearch.html). The Track Search feature can
 also be accessed by hovering over the "Genome Browser" drop-down menu.
 
 </div>
 <div class="col-md-6">
 
 <!--
 <img> here
 -->
 
 </div>
 </div>
 
+---
 ### Configuring the Genome Browser Display
 
 <div class="row">
 <div class="col-md-6">
 
 ```image
 src=../images/configureGif.gif
 width=90%
 ```
 
 </div>
 <div class="col-md-6">
 
 Use the <button>configure</button> button to customize graphic font, size, gridlines, and more.
 This can be helpful when exporting an image for publication.
 
 You can also find a link to configure the browser image by hovering over the
 "Genome Browser" drop-down menu.
 
 </div>
 </div>
 
+---
 ### Viewing the Reverse Strand
 
 <div class="row">
 <div class="col-md-6">
 
 By default, the UCSC Genome Browser displays the forward strand (5' to 3') but
 can be configured to display the negative strand (3' to 5').
 
 To reverse the genome orientation, click the <button>reverse</button> button, and the Genome
 Browser image will flip to show either the negative or positive strand.
 
 </div>
 <div class="col-md-6">
 
 ```image
 src=../images/reverseStrand.png
 width=90%
 ```
 
 </div>
 </div>
 
+---
 ### Getting Help Using the Genome Browser
 
 <div class="row">
 <div class="col-md-6">
 
 ```image
 src=../images/gettingHelp.png
 width=40%
 ```
 
 </div>
 <div class="col-md-6">
 
 The [training page](../training/) has other guides and training videos. You can
 also search the [mailing list archive](https://groups.google.com/a/soe.ucsc.edu/g/genome)