Adjust the spacing between the title and other elements in an R Shiny application

How do I modify the font and size of a title, as well as add some spacing between the title and other elements?

navbar <- navbarPage(
              Title = "Intervals",
              tabPanel("Data Import",
              sidebarLayout(sidebarPanel(fileInput("file", "Upload your CSV", multiple = FALSE),
                                       tags$hr(),
                                       h5(helpText("Select the read.table parameters below")),
                                       checkboxInput(inputId = 'header', label = 'Header', value = FALSE),
                                       checkboxInput(inputId = "stringAsFactors", label = "stringAsFactors", value = FALSE),
                                       radioButtons(inputId = 'sep', label = 'Separator', 
                                                  choices = c(Comma = ',', Semicolon = ';', Tab = '\t', Space = ''), selected = ',')
                                       ),
                          mainPanel(uiOutput("tb1"))
               )
       ),        
  tabPanel("95% Continious RI",
           sidebarLayout(sidebarPanel(
                              uiOutput("model_select"),
                              uiOutput("var1_select"),
                              uiOutput("rest_var_select")
                            ),
                           mainPanel(helpText("Selected variables and Fitted values"),
                                     verbatimTextOutput("other_val_show")))),
                  tabPanel("Model Summary", verbatimTextOutput("summary")), 
                  tabPanel("Scatterplot", plotOutput("scatterplot")))
cssrshiny

Answer №1

If you wish to include custom CSS, you can do so by following these steps:

tags$head(tags$style(HTML('.navbar-brand {width: 300px; font-size:35px; text-align:center;}'))) )

By implementing the above code snippet, your example will appear like this:

https://i.sstatic.net/vgkLW.png

To achieve a customized look that suits your preferences, feel free to adjust the numerical values accordingly. Below is the code needed to generate the image mentioned earlier. Hopefully, this explanation proves useful!

ui<-navbarPage("Intervals",
               tabPanel("Data Import",
                        sidebarLayout(sidebarPanel( fileInput("file","Upload your 
                                                              CSV",multiple = FALSE),
                                                    tags$hr(),
                                                    h5(helpText("Select the read.table parameters below")),
                                                    checkboxInput(inputId = 'header', label = 'Header', value = 
                                                                    FALSE),
                                                    checkboxInput(inputId = "stringAsFactors", "stringAsFactors", 
                                                                  FALSE),
                                                    radioButtons(inputId = 'sep', label = 'Separator', 
                                                                 choices = c(Comma=',',Semicolon=';',Tab='\t', Space=''), selected 
                                                                 = ',')),
                                      mainPanel(uiOutput("tb1")) ) ),        
               tabPanel("95% Continious RI",
                        sidebarLayout(sidebarPanel(
                          uiOutput("model_select"),
                          uiOutput("var1_select"),
                          uiOutput("rest_var_select")),
                          mainPanel( helpText("Selected variables and Fitted values"),
                                     verbatimTextOutput("other_val_show")))),
               tabPanel("Model Summary", verbatimTextOutput("summary")), 
               tabPanel("Scatterplot", plotOutput("scatterplot")),
               tags$head(tags$style(HTML('.navbar-brand {width: 300px; font-size:35px; text-align:center;}')))
)

server <- function(input,output) {}

shinyApp(ui,server)

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