Merge branch 'pr/john-newfont' into 'master'

A poor effort to align the fonts with the brave new WDN world

See merge request !368

layouts/partials/custom-head.html

 <link rel="stylesheet" href="/css/custom.css">
-<link href="https://www.unl.edu/fonts/core/477932/6B62CFDB4A94E2C3B.css" type="text/css" rel="stylesheet">
 <!-- Global site tag (gtag.js) - Google Analytics -->
 <script async src="https://www.googletagmanager.com/gtag/js?id=UA-36141757-1"></script>
 <script>

static/css/custom.css

+@font-face {
+    ascent-override:85%;font-family: "Serif Fallback";
+    size-adjust:110.85000000000004%;src: local("Times New Roman")
+}
+
+@font-face {
+    ascent-override:80%;font-family: "Sans Serif Fallback";
+    size-adjust:111.77999999999994%;src: local("Arial")
+}
+
+@font-face {
+    font-family: Work Sans;
+    font-weight: 400;
+    src: url(https://unlcms.unl.edu/wdn/templates_5.3/fonts/work-sans/WorkSans-Regular.woff2) format("woff2")
+}
+
+@font-face {
+    font-family: Work Sans;
+    font-style: italic;
+    src: url(https://unlcms.unl.edu/wdn/templates_5.3/fonts/work-sans/WorkSans-Italic.woff2) format("woff2")
+}
+
+@font-face {
+    font-family: Work Sans;
+    font-weight: 700;
+    src: url(https://unlcms.unl.edu/wdn/templates_5.3/fonts/work-sans/WorkSans-Bold.woff2) format("woff2")
+}
+
+@font-face {
+    font-family: Work Sans;
+    font-style: italic;
+    font-weight: 700;
+    src: url(https://unlcms.unl.edu/wdn/templates_5.3/fonts/work-sans/WorkSans-BoldItalic.woff2) format("woff2")
+}
+
 .img-border a img  {
   border:1px solid #021a40 !important ;
 }
 
 body, h5, h6 {
 background:  #FEFDFA ;
-font-family: "Mercury SSm A","Mercury SSm B","Times New Roman",serif;
+font-family: Work Sans,"Sans Serif Fallback",sans-serif;
 font-size: 16px !important;
 }
 
@@ -51,8 +86,9 @@ color: #5b5b5a;
 }
 
 h1, h2, h3, h4 {
-font-family: "Tungsten A","Tungsten B",Impact,Haettenschweiler,"Arial Narrow Bold","Franklin Gothic Bold",sans-serif ;
-letter-spacing: 0px;
+font-family: Work Sans,"Sans Serif Fallback",sans-serif;
+font-weight: 700;
+letter-spacing: -.01em;
 }
 
 code {
@@ -129,7 +165,8 @@ padding-bottom: 2px;
 }
 
 body strong {
-font-family: "Mercury SSm A","Mercury SSm B","Times New Roman",serif;
+font-family: Work Sans,"Sans Serif Fallback",sans-serif;
+font-weight: 700;
 }
 
 /* attachments shortcode */