feat: add CSS counter for figure captions (#72)

* feat: add CSS counter for figure captions

* Add translations for figure captions prefix

Added translations for Czech, Danish, German, Spanish, French and
Italian, from their respective `babel-<lang>` LaTeX packages.

Author: vihuna

lang/cs.css

@@ -3,3 +3,4 @@
 :lang(cs) .proof::before { content: 'Důkaz. ' attr(title) !important; }
 :lang(cs) .definition::before { content: 'Definice ' counter(definition) '. ' !important; }
 :lang(cs) caption::before { content: 'Tabulka ' counter(caption) '. ' !important; }
+:lang(cs) figcaption::before { content: 'Obrázek ' counter(figcaption) '. ' !important; }

lang/da.css

@@ -3,3 +3,4 @@
 :lang(da) .proof::before { content: 'Bevis. ' attr(title) !important; }
 :lang(da) .definition::before { content: 'Definition ' counter(definition) '. ' !important; }
 :lang(da) caption::before { content: 'Tabel ' counter(caption) '. ' !important; }
+:lang(da) figcaption::before { content: 'Figur ' counter(figcaption) '. ' !important; }

lang/de.css

@@ -3,3 +3,4 @@
 :lang(de) .proof::before { content: 'Beweis. ' attr(title) !important; }
 :lang(de) .definition::before { content: 'Definition ' counter(definition) '. ' !important; }
 :lang(de) caption::before { content: 'Tabelle ' counter(caption) '. ' !important; }
+:lang(de) figcaption::before { content: 'Abbildung ' counter(figcaption) '. ' !important; }

lang/es.css

@@ -3,6 +3,7 @@
 :lang(es) .proof::before { content: 'Demostración. ' attr(title) !important; }
 :lang(es) .definition::before { content: 'Definición ' counter(definition) '. ' !important; }
 :lang(es) caption::before { content: 'Tabla ' counter(caption) '. ' !important; }
+:lang(es) figcaption::before { content: 'Figura ' counter(figcaption) '. ' !important; }
 :lang(es) .indent-pars h2 + p,
 :lang(es) .indent-pars h3 + p,
 :lang(es) .indent-pars h4 + p {

lang/fr.css

@@ -3,6 +3,7 @@
 :lang(fr) .proof::before { content: 'Démonstration. ' attr(title) !important; }
 :lang(fr) .definition::before { content: 'Définition ' counter(definition) '. ' !important; }
 :lang(fr) caption::before { content: 'Tableau ' counter(caption) '. ' !important; }
+:lang(fr) figcaption::before { content: 'Figure ' counter(figcaption) '. ' !important; }
 :lang(fr) .indent-pars h2 + p,
 :lang(fr) .indent-pars h3 + p,
 :lang(fr) .indent-pars h4 + p {

lang/it.css

@@ -3,3 +3,4 @@
 :lang(it) .proof::before { content: 'Dimostrazione. ' attr(title) !important; }
 :lang(it) .definition::before { content: 'Definizione ' counter(definition) '. ' !important; }
 :lang(it) caption::before { content: 'Tabella ' counter(caption) '. ' !important; }
+:lang(it) figcaption::before { content: 'Figura ' counter(figcaption) '. ' !important; }

style.css

@@ -440,6 +440,22 @@ table.borders-custom {
   text-align: right;
 }
 
+/* Format figure captions (based on table captions) */
+figure {
+  counter-increment: figcaption;
+}
+figcaption {
+  text-align: left;
+  font-size: 0.923em;
+  padding: 0.25em 0.25em 0;
+  width: 100%;
+  margin-left: 0;
+}
+figcaption::before {
+  content: 'Figure ' counter(figcaption) '. ';
+  font-weight: bold;
+}
+
 /* Center align the title */
 h1:first-child {
   text-align: center;