Fix typos, remove ineffective css

docs/2_coordinates.md

@@ -43,7 +43,7 @@ infinitesimal volumes $dV$ are given as:
 
 The formula for $dV$ also indicates that in Cartesian coordinates, the integral
 over a volume can be expressed as individual integrals over all coordinate directions:
-$$\int dV = \idotsint dx_1 dx_2 \ldots dx_N$$.
+$$\int dV = \idotsint dx_1 dx_2 \ldots dx_N.$$
 
 Cartesian coordinates are used a lot and they are particularly suitable for
 infinite spaces or for rectangular volumes.
@@ -69,8 +69,8 @@ In polar coordinates, the radius $r$ has a dimension of *length*, but
 the angular coordinate $\varphi$ is dimensionless.
 
 <figure markdown>
-  ![polarplot](figures/Coordinates_7_0.svg){ width="auto" }
-  <figcaption>In this example of a polar plot, you can distinguish the radial coordinate $( 0.2, 0.4 \. \text{etc.. })$ from the angular one expressed in degrees $( 0^\circ, 45^\circ \. \text{etc..} )$</figcaption>
+  ![polarplot](figures/Coordinates_7_0.svg)
+  <figcaption>In this example of a polar plot, you can distinguish the radial coordinate $( 0.2, 0.4, \text{ etc.. })$ from the angular one expressed in degrees $( 0^\circ, 45^\circ, \text{ etc..} )$</figcaption>
 </figure>
 
 

docs/styles/extra.css

-.figure { display: table; }
-
-.figcaption { display: table-caption; caption-side: bottom ; }

mkdocs.yml

@@ -54,7 +54,6 @@ markdown_extensions:
 extra_css:
   - 'https://use.fontawesome.com/releases/v5.8.1/css/all.css'
   - 'styles/mathjax_overflowfix.css'
-  - 'styles/extra.css'
 
 extra_javascript:
   - 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js?config=TeX-AMS_CHTML'