@startuml
skinparam defaultFontName NSimSun
skinparam titleBorderRoundCorner 15
skinparam titleBorderThickness 2
skinparam titleBorderColor red
skinparam titleBackgroundColor Aqua-CadetBlue

scale 1.5
'scale 2/3
'scale 200 width
'scale 400 height
'scale 200*400
'scale max 400*300
'scale max 1024 width

caption 结构图123
title <i>title</i>\nexample

header
<font color=red>Warning:</font>
Do not use in production
endheader

center footer Footer description

legend right
    short
    legend
endlegend

User << Human >>
:Main Database: as MySql << 应用 >>
(Start) << One Shot >>
(Use the application) as (Use) << 主页 >>

User -> (Start)
User --> (Use)

MySql --> (Use)

@enduml