diff --git a/css/_share-modal.scss b/css/_share-modal.scss
index b440b8a..046a70f 100644
--- a/css/_share-modal.scss
+++ b/css/_share-modal.scss
@@ -28,6 +28,10 @@ button#igv-share-url-button {
   }
 }
 
+input#igv-app-share-input {
+  pointer-events: none;
+}
+
 #igv-app-qrcode-image {
   padding: 16px;
   display:none;
diff --git a/css/app.css b/css/app.css
index 767a8a7..f9d42dc 100644
--- a/css/app.css
+++ b/css/app.css
@@ -68,6 +68,10 @@ button#igv-share-url-button svg {
   height: 20px;
 }
 
+input#igv-app-share-input {
+  pointer-events: none;
+}
+
 #igv-app-qrcode-image {
   padding: 16px;
   display: none;
diff --git a/css/app.css.map b/css/app.css.map
index d6df1eb..7a7eed1 100644
--- a/css/app.css.map
+++ b/css/app.css.map
@@ -1 +1 @@
-{"version":3,"sourceRoot":"","sources":["_panel.scss","_color.scss","_share-modal.scss","_encode.scss","_track-select.scss","_igv-widgets-alert-dialog.scss","app.scss","_file-load-widget.scss"],"names":[],"mappings":"AAMA;EACE;EACA;EACA;EAEA;EAEA,OAXuB;EAYvB,QAXwB;EAaxB,cCTmB;EDUnB,kBCNe;EDQf;;AAEA;EAEE;EACA;EACA;EACA;EACA;EAEA;EAEA;EACA;EAEA;;AAEA;EACE;EACA;EACA;EACA;EACA;EAEA;EACA,QAxCmC;EA0CnC,kBCrCa;EDuCb;EACA;;AAEA;EACE;EACA,OCjDU;EDkDV;;AAGF;EACE;EACA;EACA;;AAGF;EACE;EACA;;;AE5DR;EAEE,OAJmB;;AAMnB;EACE,aAVkB;EAWlB,WAVgB;EAWhB;EACA;;AACA;EACE;;;AAON;EACE;;AACA;EACE;EACA;;;AAIJ;EACE;EACA;;;AAGF;EACE;EACA;;;AAGF;EACE;EACA;EACA;EACA;EACA;;;AAGF;EACE;;;AAGF;EACE;;;ACrDF;EAEE;EAEA;EACA;EACA;EACA;EACA;;;ACRF;EAEE;;AAEA;EACE;;AAGF;EAGE;;;ACAJ;EAEE;EAEA;EACA;EACA;EACA;EAEA,OAlBuB;EAmBvB,QAlBwB;EAoBxB,cCfyB;EDgBzB,eCfoC;EDgBpC;EACA;EAEA;EAEA,aCvBsB;EDwBtB;EACA;EAEA;EAEA;EACA;EACA;EACA;EACA;;AAGA;EAEE;EACA;EACA;EACA;EACA;EAEA;EACA,QA9C6B;EA+C7B;EAEA,wBC9CkC;ED+ClC,yBC/CkC;EDgDlC,qBCjDuB;EDkDvB;EACA;EAEA;;AAEA;EAEE;;AAMJ;EACE,OC9DkB;EDgElB;EACA;EAEA;;AAEA;EACE;EAGA,QA1E8B;EA4E9B;EACA;EAKA;EACA;EAEA;EACA;;AAKJ;EAEE;EACA;EAEA;EAEA;EACA;EACA;EACA;EACA;;AAGA;EACE;EACA;EACA,QA7G8B;EA+G9B,aA/G8B;EAgH9B;EAEA;EACA,aCpHkB;EDqHlB;EACA;EAEA;EACA;EACA;EACA;EACA;;AAGF;EACE;EACA;EACA;;;AEnFN;EAEE;EACA;EACA;EAIA,OA3DmB;EA4DnB,aA/DkB;EAgElB,WA/DkB;EAgElB;EAEA;EACA;EAEA;EAEA;EACA;EACA;EACA;EACA;;AAGA;EACE;EACA;EAEA,kBAjFuB;EAmFvB;EACA;EACA;EACA;EACA;;AAGA;EACE;EACA;EACA;EAEA;EACA;EAEA,OAhGoB;;AAmGtB;EACE;;AAMJ;EAEE;EAEA;EACA;EAEA;EACA;EACA;EACA;EACA;;AAGA;EAEE,QAvGqB;EAwGrB;EAEA;EAEA;EACA;EAEA;EACA;EACA;EACA;EACA;EAEA;EACA;EACA;EACA;;AAGA;EAGE,OA5I0B;EA6I1B;EAIA;EACA,QApImB;EAsInB,aAtImB;EAuInB;;AAjIN;EACE;EACA;EACA;EAEA;EAEA,OAhCsB;EAiCtB,WApCgB;EAqChB,aAtCgB;EAuChB;EACA;EAEA;EAEA;EACA;EACA;EACA;EAEA;;AAkHE;EACE;;AAIF;EACE;EACA;EACA;EACA;EAEA;EACA;EAEA,cAxK0B;EAyK1B;EACA;EACA;EAEA;;AAEA;EACE;EACA;;AAGF;EACE,OArLwB;;AAwL1B;EACE;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;;AAKJ;EACE;EACA,kBAzM0B;;AA6M5B;EAEE;EAEA;EAEA;EACA;EAEA;EACA;EAEA,cA/Na;EAgOb;EACA;EACA;;AAMF;EAEE;EACA,QAvNmB;EAyNnB,OA5OkB;EA6OlB,aA1NmB;EA2NnB;EACA;EAEA;EAEA;EACA;EACA;;AAOJ;EACE;EACA,cA/Pe;;AAoQnB;EAEE;EAEA;EACA;EAEA;EAEA;EACA,WAhRgB;EAkRhB;EAEA;EACA;EACA;EACA;EACA;;AAGA;EACE;EACA;EAEA;EACA;EACA;;AAMF;EACE;EACA;EACA;EAEA;EACA;EAEA,OA5SoB;;AA+StB;EACE;;AAMJ;EAEE;EACA,QAxSoB;EAySpB;EAEA;EACA,WAhUgB;EAkUhB;EACA;EACA;EACA;EACA;;AAEA;EACE,OAtTiB;EAuTjB,QAtTkB;EAwTlB,aAxTkB;EAyTlB;EAEA;EACA;EACA;EACA,eA1TkB;EA4TlB;;AAGF;EACE;EACA,kBA7UwB;;AAgV1B;EACE;EACA,kBAjV8B;;AAoVhC;EACE,kBAxVoB;;AA2VtB;EACE;EACA,kBA5V0B;;;ADchC;EACE,aAPkB;;;AAYlB;EACE;;;AAKJ;EACE;EACA;EACA;EACA;;;AAGF;EACE;;;AAGF;EACE;;;AAGF;EACE;;;AAGF;EACE;;;AAIA;EACE;;;AAIJ;EACE;EACA;EACA;;;AAGF;EACE;;;AAGF;EACE;EACA;;;AAGF;EACE,YA/DkB;EAgElB,kBAvEmB;;;AA6Ef;EACE;EACA;EACA;;AAEF;EACE;;;AAMR;EACE;;;AAGF;EACE;;;AAGF;EACE;EAEA;;;AAGF;EACE;;;AAGF;EACE;EACA;EACA;;;AAGF;EACE;;;AAGF;EAEE;EACA;EACA;EACA;EACA;EAEA;EACA;EAEA;EACA;;AAEA;EACE;;AAEF;EACE;;;AAKJ;EACE;;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;;AAKA;EACE;;AAEA;EACE;;;AAKN;EACE;;;AAGF;EACE;EACA;;;AAKA;EACE;;;AAOF;EACE;;;AAKJ;EAEE;EACA;EACA;EACA;EACA;EAEA;EACA;;;AAOE;EACE,OAhNe;EAiNf;EACA;EACA;;;AAKN;EACE;;;AAKA;EACE,OA/NiB;EAgOjB;EAEA;;AAGF;EAEE;;;AAKJ;EACE;EACA;;;AAGF;EACE,eA7OsB;;;AAgPxB;EACE;EACA;EAEA;EACA,QArPsB;EAsPtB,aAtPsB;EAwPtB;EACA;EACA;EACA;EACA;;AAEA;EACE,QA/PoB;EAgQpB,aAhQoB;EAiQpB;EACA;;AACA;EACE,OAzQe;EA0Qf;;AAIJ;EACE,QA1QoB;EA2QpB,aA3QoB;EA4QpB;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;;AAEA;EACE;;;AAMN;EACE;EAEA,QAlSkC;EAoSlC;;;AAIF;EACE,kBA7SmB;;;AAgTrB;EACE;EACA;;;AAGF;EACE;EACA;EACA;EACA;EACA;;;AAGF;EACE,OA/TqB;EAgUrB;EACA;;;AAGF;EACE,OApUmB;EAqUnB,cAtUqB;;;AAyUvB;EACE,kBA1UqB;;;AA6UvB;EACE,kBA7UmB;;;AAgVrB;EACE;;;AAQA;EACE;EACA;EACA;EACA;EACA;EACA;;;AAKJ;EACE;;;AAIF;EACE;EACA;;;AAIF;EACE;EACA;;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;;AAKF;EACE;;;AAKA;EACE;EACA;EAEA;EACA;EAEA;EACA;EACA;EACA;;AAGF;EACE;;;AAIJ;EACE;EACA;;;AAGF;EAEE;IACE;IACA;IAEA;IACA,QAraoB;IAsapB,aAtaoB;IAwapB;IACA;IACA;IACA;IACA;;EAEA;IACE,QA/akB;IAgblB,aAhbkB;IAiblB;IACA;;EACA;IACE,OAzba;IA0bb;;EAIJ;IACE,QA1bkB;IA2blB,aA3bkB;IA4blB;IACA;;EAGF;IACE","file":"app.css"}
\ No newline at end of file
+{"version":3,"sourceRoot":"","sources":["_panel.scss","_color.scss","_share-modal.scss","_encode.scss","_track-select.scss","_igv-widgets-alert-dialog.scss","app.scss","_file-load-widget.scss"],"names":[],"mappings":"AAMA;EACE;EACA;EACA;EAEA;EAEA,OAXuB;EAYvB,QAXwB;EAaxB,cCTmB;EDUnB,kBCNe;EDQf;;AAEA;EAEE;EACA;EACA;EACA;EACA;EAEA;EAEA;EACA;EAEA;;AAEA;EACE;EACA;EACA;EACA;EACA;EAEA;EACA,QAxCmC;EA0CnC,kBCrCa;EDuCb;EACA;;AAEA;EACE;EACA,OCjDU;EDkDV;;AAGF;EACE;EACA;EACA;;AAGF;EACE;EACA;;;AE5DR;EAEE,OAJmB;;AAMnB;EACE,aAVkB;EAWlB,WAVgB;EAWhB;EACA;;AACA;EACE;;;AAON;EACE;;AACA;EACE;EACA;;;AAIJ;EACE;;;AAGF;EACE;EACA;;;AAGF;EACE;EACA;;;AAGF;EACE;EACA;EACA;EACA;EACA;;;AAGF;EACE;;;AAGF;EACE;;;ACzDF;EAEE;EAEA;EACA;EACA;EACA;EACA;;;ACRF;EAEE;;AAEA;EACE;;AAGF;EAGE;;;ACAJ;EAEE;EAEA;EACA;EACA;EACA;EAEA,OAlBuB;EAmBvB,QAlBwB;EAoBxB,cCfyB;EDgBzB,eCfoC;EDgBpC;EACA;EAEA;EAEA,aCvBsB;EDwBtB;EACA;EAEA;EAEA;EACA;EACA;EACA;EACA;;AAGA;EAEE;EACA;EACA;EACA;EACA;EAEA;EACA,QA9C6B;EA+C7B;EAEA,wBC9CkC;ED+ClC,yBC/CkC;EDgDlC,qBCjDuB;EDkDvB;EACA;EAEA;;AAEA;EAEE;;AAMJ;EACE,OC9DkB;EDgElB;EACA;EAEA;;AAEA;EACE;EAGA,QA1E8B;EA4E9B;EACA;EAKA;EACA;EAEA;EACA;;AAKJ;EAEE;EACA;EAEA;EAEA;EACA;EACA;EACA;EACA;;AAGA;EACE;EACA;EACA,QA7G8B;EA+G9B,aA/G8B;EAgH9B;EAEA;EACA,aCpHkB;EDqHlB;EACA;EAEA;EACA;EACA;EACA;EACA;;AAGF;EACE;EACA;EACA;;;AEnFN;EAEE;EACA;EACA;EAIA,OA3DmB;EA4DnB,aA/DkB;EAgElB,WA/DkB;EAgElB;EAEA;EACA;EAEA;EAEA;EACA;EACA;EACA;EACA;;AAGA;EACE;EACA;EAEA,kBAjFuB;EAmFvB;EACA;EACA;EACA;EACA;;AAGA;EACE;EACA;EACA;EAEA;EACA;EAEA,OAhGoB;;AAmGtB;EACE;;AAMJ;EAEE;EAEA;EACA;EAEA;EACA;EACA;EACA;EACA;;AAGA;EAEE,QAvGqB;EAwGrB;EAEA;EAEA;EACA;EAEA;EACA;EACA;EACA;EACA;EAEA;EACA;EACA;EACA;;AAGA;EAGE,OA5I0B;EA6I1B;EAIA;EACA,QApImB;EAsInB,aAtImB;EAuInB;;AAjIN;EACE;EACA;EACA;EAEA;EAEA,OAhCsB;EAiCtB,WApCgB;EAqChB,aAtCgB;EAuChB;EACA;EAEA;EAEA;EACA;EACA;EACA;EAEA;;AAkHE;EACE;;AAIF;EACE;EACA;EACA;EACA;EAEA;EACA;EAEA,cAxK0B;EAyK1B;EACA;EACA;EAEA;;AAEA;EACE;EACA;;AAGF;EACE,OArLwB;;AAwL1B;EACE;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;;AAKJ;EACE;EACA,kBAzM0B;;AA6M5B;EAEE;EAEA;EAEA;EACA;EAEA;EACA;EAEA,cA/Na;EAgOb;EACA;EACA;;AAMF;EAEE;EACA,QAvNmB;EAyNnB,OA5OkB;EA6OlB,aA1NmB;EA2NnB;EACA;EAEA;EAEA;EACA;EACA;;AAOJ;EACE;EACA,cA/Pe;;AAoQnB;EAEE;EAEA;EACA;EAEA;EAEA;EACA,WAhRgB;EAkRhB;EAEA;EACA;EACA;EACA;EACA;;AAGA;EACE;EACA;EAEA;EACA;EACA;;AAMF;EACE;EACA;EACA;EAEA;EACA;EAEA,OA5SoB;;AA+StB;EACE;;AAMJ;EAEE;EACA,QAxSoB;EAySpB;EAEA;EACA,WAhUgB;EAkUhB;EACA;EACA;EACA;EACA;;AAEA;EACE,OAtTiB;EAuTjB,QAtTkB;EAwTlB,aAxTkB;EAyTlB;EAEA;EACA;EACA;EACA,eA1TkB;EA4TlB;;AAGF;EACE;EACA,kBA7UwB;;AAgV1B;EACE;EACA,kBAjV8B;;AAoVhC;EACE,kBAxVoB;;AA2VtB;EACE;EACA,kBA5V0B;;;ADchC;EACE,aAPkB;;;AAYlB;EACE;;;AAKJ;EACE;EACA;EACA;EACA;;;AAGF;EACE;;;AAGF;EACE;;;AAGF;EACE;;;AAGF;EACE;;;AAIA;EACE;;;AAIJ;EACE;EACA;EACA;;;AAGF;EACE;;;AAGF;EACE;EACA;;;AAGF;EACE,YA/DkB;EAgElB,kBAvEmB;;;AA6Ef;EACE;EACA;EACA;;AAEF;EACE;;;AAMR;EACE;;;AAGF;EACE;;;AAGF;EACE;EAEA;;;AAGF;EACE;;;AAGF;EACE;EACA;EACA;;;AAGF;EACE;;;AAGF;EAEE;EACA;EACA;EACA;EACA;EAEA;EACA;EAEA;EACA;;AAEA;EACE;;AAEF;EACE;;;AAKJ;EACE;;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;;AAKA;EACE;;AAEA;EACE;;;AAKN;EACE;;;AAGF;EACE;EACA;;;AAKA;EACE;;;AAOF;EACE;;;AAKJ;EAEE;EACA;EACA;EACA;EACA;EAEA;EACA;;;AAOE;EACE,OAhNe;EAiNf;EACA;EACA;;;AAKN;EACE;;;AAKA;EACE,OA/NiB;EAgOjB;EAEA;;AAGF;EAEE;;;AAKJ;EACE;EACA;;;AAGF;EACE,eA7OsB;;;AAgPxB;EACE;EACA;EAEA;EACA,QArPsB;EAsPtB,aAtPsB;EAwPtB;EACA;EACA;EACA;EACA;;AAEA;EACE,QA/PoB;EAgQpB,aAhQoB;EAiQpB;EACA;;AACA;EACE,OAzQe;EA0Qf;;AAIJ;EACE,QA1QoB;EA2QpB,aA3QoB;EA4QpB;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;;AAEA;EACE;;;AAMN;EACE;EAEA,QAlSkC;EAoSlC;;;AAIF;EACE,kBA7SmB;;;AAgTrB;EACE;EACA;;;AAGF;EACE;EACA;EACA;EACA;EACA;;;AAGF;EACE,OA/TqB;EAgUrB;EACA;;;AAGF;EACE,OApUmB;EAqUnB,cAtUqB;;;AAyUvB;EACE,kBA1UqB;;;AA6UvB;EACE,kBA7UmB;;;AAgVrB;EACE;;;AAQA;EACE;EACA;EACA;EACA;EACA;EACA;;;AAKJ;EACE;;;AAIF;EACE;EACA;;;AAIF;EACE;EACA;;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;;AAKF;EACE;;;AAKA;EACE;EACA;EAEA;EACA;EAEA;EACA;EACA;EACA;;AAGF;EACE;;;AAIJ;EACE;EACA;;;AAGF;EAEE;IACE;IACA;IAEA;IACA,QAraoB;IAsapB,aAtaoB;IAwapB;IACA;IACA;IACA;IACA;;EAEA;IACE,QA/akB;IAgblB,aAhbkB;IAiblB;IACA;;EACA;IACE,OAzba;IA0bb;;EAIJ;IACE,QA1bkB;IA2blB,aA3bkB;IA4blB;IACA;;EAGF;IACE","file":"app.css"}
\ No newline at end of file
diff --git a/index.html b/index.html
index 0d7f956..aa7727e 100644
--- a/index.html
+++ b/index.html
@@ -470,10 +470,10 @@
                             <!-- Copy URL -->
                             <div class="row">
                                 <div class="col">
-                                    <div class="input-group">
+                                    <div class="input-group input-group-sm">
                                         <input id="igv-app-share-input" type="text" class="form-control" placeholder="">
                                         <div class="input-group-append">
-                                            <button id="igv-app-copy-link-button" class="btn btn-outline-secondary" type="button">Copy Session URL</button>
+                                            <button id="igv-app-copy-link-button" class="btn btn-sm btn-outline-secondary" type="button">Copy Session URL</button>
                                         </div>
                                     </div>
                                 </div>
@@ -483,8 +483,8 @@
                             <div class="row pt-4">
                                 <div class="col">
                                     <div class="btn-group custom-btn-group" role="group">
-                                        <button id="igv-app-embed-button"       type="button" class="btn btn-outline-secondary">Embeddable iframe</button>
-                                        <button id="igv-app-copy-iframe-button" type="button" class="btn btn-outline-secondary">Copy iframe</button>
+                                        <button id="igv-app-embed-button"       type="button" class="btn btn-sm btn-outline-secondary">Embeddable iframe</button>
+                                        <button id="igv-app-copy-iframe-button" type="button" class="btn btn-sm btn-outline-secondary">Copy iframe</button>
                                     </div>
                                 </div>
                             </div>
@@ -499,7 +499,7 @@
                             <!-- QR Code Button -->
                             <div id="igv-app-qrcode-container"  class="row pt-4">
                                 <div class="col">
-                                    <button id="igv-app-qrcode-button" type="button" class="btn btn-outline-secondary">Create QR Code</button>
+                                    <button id="igv-app-qrcode-button" type="button" class="btn btn-sm btn-outline-secondary">Create QR Code</button>
                                 </div>
                             </div>