Index: simulation/raw/01_dc.html
===================================================================
--- simulation/raw/01_dc.html	(revision 8795)
+++ simulation/raw/01_dc.html	(revision 8796)
@@ -23,8 +23,9 @@
 Note: these symbols do not have a footprint attribute so they are not exported
 in the PCB workflow.
 <p>
+<center>
 <a href="01_dc.rs"><img src="01_dc.svg" width=400px></a>
-<center>Click the image to get the sch-rnd sheet</center>
+<br>Click the image to get the sch-rnd sheet</center>
 <p>
 
 <h2> SPICE: what is a DC op point </h2>
@@ -37,7 +38,7 @@
 In the op point analysis, the simulator will apply all sources, assume
 all inductors are shorted and assume all capacitors are open and then calculate
 the voltage for all nodes. (Node is the spice terminology for an equipotential
-electrical network.) This simulation is not time or frequency dependent, amd
+electrical network.) This simulation is not time or frequency dependent, and
 represents a single DC operating point once the circuit has already stabilized.
 <p>
 In our example, this means V1's 5V is applied and the voltages at in, out1 and
Index: simulation/raw/04_passive_tr.html
===================================================================
--- simulation/raw/04_passive_tr.html	(revision 8795)
+++ simulation/raw/04_passive_tr.html	(revision 8796)
@@ -12,8 +12,9 @@
 The single-sheet schematic contains the filter, the voltage source and
 the spice command symbol.
 <p>
+<center>
 <a href="04_passive_tr.rs"><img src="04_passive_tr.svg" width=400px></a>
-<center>Click the image to get the sch-rnd sheet</center>
+<br>Click the image to get the sch-rnd sheet</center>
 <p>
 
 <h2> SPICE: what a tran simulation is </h2>
Index: simulation/sim/01_dc/index.html
===================================================================
--- simulation/sim/01_dc/index.html	(revision 8795)
+++ simulation/sim/01_dc/index.html	(revision 8796)
@@ -15,8 +15,9 @@
 named. There are no extra symbols for the simulation, the circuit is in its
 original form, as designed for the PCB workflow.
 <p>
+<center>
 <a href="01_dc.rs"><img src="01_dc.svg" width=400px></a>
-<center>Click the image to get the sch-rnd sheet; also requires this <a href="project.lht">project.lht</a> in the same directory</center>
+<br>Click the image to get the sch-rnd sheet; also requires this <a href="project.lht">project.lht</a> in the same directory</center>
 <p>
 
 <h2> SPICE: what is a DC op point </h2>
@@ -106,8 +107,9 @@
 <p>
 This opens the <i>simulation setup</i> dialog for the selected sim setup.
 <p>
+<center>
 <img src="sim_setup.png">
-<center>Simulation setup dialog, with 3 tabs</center>
+<br>Simulation setup dialog, with 3 tabs</center>
 <p>
 The sim setup dialog has 3 tabs and a control block on the bottom. Each
 tab is configuring an important aspect of the given simulation setup
@@ -145,8 +147,9 @@
 	<li> ... and no AC value or time dependent (function) value
 </ul>
 <p>
+<center>
 <img src="sim_mod.png">
-<center>Simulation modification, adding a DC voltage source</center>
+<br>Simulation modification, adding a DC voltage source</center>
 <p>
 Or in short: this is the 5V power supply connected to CN1.
 <p>
@@ -168,8 +171,9 @@
 they are specified, and are presented in the same order. This is useful to
 get multiple printouts or plots of the same or different analyses.
 <p>
+<center>
 <img src="sim_setup2.png">
-<center>Simulation setup dialog, second tab</center>
+<br>Simulation setup dialog, second tab</center>
 <p>
 Select the first entry, which runs the 'op' analysis and presents the result
 simply printing values. Click on the edit button. This opens the sim output
@@ -181,8 +185,9 @@
 or a component-port pair (or a function based on one of these). In this example
 we are measuring voltages at two pins of connector CN2.
 <p>
+<center>
 <img src="sim_out.png">
-<center>Simulation output configuration for op+print</center>
+<br>Simulation output configuration for op+print</center>
 <p>
 
 <h3> Sim setup: run &amp; output </h3>
@@ -202,7 +207,8 @@
 the voltages measured on pin 3 and 2 of the connector CN2, as requested in
 the output config.
 <p>
+<center>
 <img src="sim_setup3.png">
-<center>Simulation setup dialog, third tab, after execution</center>
+<br>Simulation setup dialog, third tab, after execution</center>
 <p>