Getting started with Android. Control style

When setting the height and width of the control, use dp
android:layout_width="100dp"


to set the font, use sp
android:textSize="10sp"

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Control style, inside Margin and Margin


Margin //The distance between the two controls
android:layout_margin="30dp"


Inner margin//The distance between the inner border and content of the own control
android:padding="20dp"