diff --git a/R/group_bootstrap.R b/R/group_bootstrap.R
index 27167919..b49451f0 100644
--- a/R/group_bootstrap.R
+++ b/R/group_bootstrap.R
@@ -78,7 +78,8 @@ group_bootstrap_row <- function(x, i, j, indent = 1, ...) {
   idx <- insert_values(seq_len(m$nrows), rep(NA, length(i)), i)
   idx_old <- idx$new[!is.na(idx$old)]
   idx_new <- idx$new[is.na(idx$old)]
-  out <- style_tt(out, i = idx_old, j = 1, indent = indent)
+  # cannot be style_tt, because we already have a string bootstrap table at this stage
+  out <- style_bootstrap(out, i = idx_old, j = 1, indent = indent)
 
   dots <- list(...)
   dots[["j"]] <- NULL
diff --git a/R/style_bootstrap.R b/R/style_bootstrap.R
index b054b22f..e5e9c001 100644
--- a/R/style_bootstrap.R
+++ b/R/style_bootstrap.R
@@ -83,6 +83,9 @@ style_bootstrap <- function(x,
   settings$bootstrap <- vectorize_bootstrap(settings$bootstrap, color, "color: %s;")
   settings$bootstrap <- vectorize_bootstrap(settings$bootstrap, background, "background-color: %s;")
   settings$bootstrap <- vectorize_bootstrap(settings$bootstrap, width, "width: %s;")
+  if (indent > 0) {
+    settings$bootstrap <- paste(settings$bootstrap, sprintf("padding-left: %sem;", indent), sep = "")
+  }
 
   # unique IDs for each CSS style combination
   id <- sapply(unique(settings$bootstrap), function(k) get_id(stem = "tinytable_css_"))
diff --git a/inst/tinytest/test-html.R b/inst/tinytest/test-html.R
index 072d77d9..18aac723 100644
--- a/inst/tinytest/test-html.R
+++ b/inst/tinytest/test-html.R
@@ -34,6 +34,10 @@ tab <- tt(iris[1:10,]) |>
   group_tt(j = list("Sepal" = 1:2, "Petal" = 3:4))
 expect_equal_to_reference(clean(tab), "_tinysnapshot/html-issue58.rds")
 
+# Issue #88: indent
+tab <- tt(iris[1:10,]) |> 
+  style_tt(i = 2:4, indent = 3)
+expect_equal_to_reference(clean(tab), "_tinysnapshot/html-issue88.rds")
 
 # tutorial.qmd: heatmap
 k <- data.frame(matrix(1:20, ncol = 5))