When I create the tables, the front of the table caption was too small than the others, I don't know how to solve this problem? Does someone know this?
\documentclass[utf8]{frontiers_suppmat} % for all articles
\usepackage{url,hyperref,lineno,microtype}
\usepackage[onehalfspacing]{setspace}
\usepackage[normalem]{ulem}
\usepackage{booktabs}
\begin{document}
\onecolumn
\firstpage{1}
\title[Supplementary Material]{{\helveticaitalic{Supplementary Material}}}
\maketitle
\section{Supplementary Data}
\begin{table}[h!]
\caption{The Ct values of qPCR for 23 samples and their copy numbers.}
\label{stab2}
\centering
\begin{tabular}{cll}
\toprule
Sample Number & \multicolumn{1}{c}{\textbf{Ct value}} & \multicolumn{1}{c}{\textbf{Copies}} \
\midrule
1 & \multicolumn{1}{c}{22.78} & \multicolumn{1}{c}{20562.22} \
2 & \multicolumn{1}{c}{25.28} & \multicolumn{1}{c}{3574.30} \
3 & \multicolumn{1}{c}{20.45} & \multicolumn{1}{c}{105021.11} \
4 & \multicolumn{1}{c}{29.34} & 208.52 \
5 & 25.44 & 3195.65 \
6 & 19.14 & 262695.65 \
7 & 21.1 & 66635.89 \
8 & / & / \
9 & 19.66 & 182556.87 \
10 & 23 & 17627.90 \
11 & 18.31 & 469604.80 \
12 & 21.4 & 54016.05 \
13 & 18.59 & 386034.52 \
14 & 21.51 & 50013.60 \
15 & 17.24 & 993025.70 \
16 & / & / \
17 & 20.87 & 78273.91 \
18 & 19.39 & 220528.66 \
19 & 16.42 & 1762790.12 \
20 & 30.75 & 77.73 \
21 & \multicolumn{1}{c}{24.03} & \multicolumn{1}{c}{8572.96} \
22 & \multicolumn{1}{c}{33.18} & \multicolumn{1}{c}{14.19} \
23 & \multicolumn{1}{c}{15.46} & \multicolumn{1}{c}{3451389.08} \
NTC & \multicolumn{1}{c}{/} & \multicolumn{1}{c}{/} \
\bottomrule
\end{tabular}
\end{table}
\end{document}


\footnotesizeinside its definition of\@tablecaption. This can probably be patched (see https://tex.stackexchange.com/q/152773/52406), but I don't know how to do that properly. – mickep Mar 01 '22 at 08:24