beamerhorizontal alignment
The question is, how to horizontally center a beamercolorbox on the page?
I put it in the center environment, but that doesn't work.
\setbeamercolor{bgcolor}{fg=black,bg=blue}
\begin{center}
\begin{beamercolorbox}[rounded=true, center=true, shadow=true, wd=6cm]{bgcolor}
Some text goes here...
\end{beamercolorbox}
\end{center}
It's a bit of a hack, but you could use the multirow package, and just use a multicolumn with colspan 1 that centers its content.
Why not just add another table row? Again, using the multirow package you can alter the column separators for a single row - in this case removing them and just adding a row of whitespace.
Add \centering at the top of your table float:
\begin{table}
\centering
...
I stumbled in a similar problem and solved it with the tcolorbox package.
Here is the code:
\documentclass[final]{beamer}
\usepackage[orientation=portrait,size=a0,scale=1.4,debug]{beamerposter}
\usepackage{tcolorbox} %
\tcbuselibrary{skins} % preamble
\usepackage{tikz} %
\usetikzlibrary{shadows,shadings} %
\tikzset{myshadow/.style={ % custom shadow with tikz
opacity=.85,
shadow xshift=0.15,
shadow yshift=-0.15,
shade,
shading=axis,
shading angle=230}
}
\tcbset{ % set a custom tcolorbox
skin=enhanced, % enables use of shadows
frame style={fill=gray,drop shadow={myshadow}}, % sets the frame color and the shadow properties
bottom=7mm, % distance between the body text and the bottom frame
top=14mm, % distance between the body text and the top frame
boxrule=0mm, % frame width
bottomtitle=5mm, % distance between the title text and the bottom title frame
toptitle=5mm, % distance between the title text and the top title frame
lefttitle=1cm % title text left margin
}
\begin{document}
\begin{frame}
\begin{columns}
\begin{column}{.3\textwidth}
\begin{tcolorbox}[title=\large Fontsizes]
\centering
{\tiny tiny}\par
{\scriptsize scriptsize}\par
{\footnotesize footnotesize}\par
{\normalsize normalsize}\par
\end{tcolorbox}
\end{column}
\end{columns}
\end{frame}
\end{document}
the result is this:
for comparison:
I tried to explain everything in the code. If you want all the tcolorboxes to be like this, just put the \tcbset code in the preamble, otherwise start a group just before the tcolorboxes you want to customize in that way.
The only thing that doesn't really look the same is the shadow (my shadow isn't blurred), but with some tweaks and the shadows.blur tikzlibrary it should be possible to obtain the exact same result.
Best Answer
wd=<dimen>not only sets the width of thebeamercolorboxto<dimen>, it sets the\hsizeto<dimen>. So you're centering a box in a line which has the same width as the box, resulting in nothing.So to force centering, use some
\hfills:I'm not sure why you need two at the end—it seems like one at the front and back would do the centering. But instead you just get a box flush right. So an extra one does the trick.