How To Set Flutter Box Shadow Only Top

In this Flutter post, we will be implementing **Flutter box shadow only top and explaining everything practically step by step by using a proper Flutter example code. I hope after reading this post, it will be very easy for you to implement [Flutter box shadow](https://letmeflutter.com/how-to-easily-change-flutter-container-shadow-color/)** only top in your own Flutter apps.

So what are we both waiting for? Let’s both of us jump right into implementing it.

Outline

1. What is Flutter Box Shadow Only Top?
2. Default Flutter Box Shadow Offset
3. Implementing Flutter Box Shadow Only Top
4. Flutter Box Shadow Only Top Implementation Source Code
5. Conclusion

What is Flutter Box Shadow Only Top?

**Flutter box shadow only top means the shadow that comes from the [Flutter container](https://letmeflutter.com/how-to-easily-change-flutter-container-padding/)** box should be shown at only top direction.

Let’s understand it using an easy Flutter example. Let’s first see what the default Flutter box shadow offset looks like, it is the position of the Flutter box shadow, then we will customize it to Flutter **box shadow** only top.

Default Flutter Box Shadow Offset

To see what the default offset of Flutter **box shadow** actually looks like, just follow these steps:

• First we have to define a **Flutter container widget with some [height](https://letmeflutter.com/how-to-easily-change-flutter-container-height/), [width](https://letmeflutter.com/how-to-easily-set-flutter-container-full-width/), a container [background color](https://letmeflutter.com/how-to-easily-change-flutter-container-color/) and a child [text widget](https://letmeflutter.com/how-to-easily-set-flutter-text-word-spacing/)**.
• We will also use the box decoration property by using its decoration constructor.
• We’ll use the box shadow constructor of box decoration. This constructor takes a list of box shadow widgets.
• We will pass one box shadow widget and we will customize its blur radius, spread radius and color constructor.

If these steps confuse you then see the below code in which these steps are practically implemented:

Container(
              height: 100,
              width: 240,
              decoration: BoxDecoration(
                boxShadow: [
                  BoxShadow(blurRadius: 5, spreadRadius: 1, color: Colors.grey)
                ],
                color: Colors.white,
              ),
              alignment: Alignment.center,
              child: Text('Flutter Container Default Shadow Offset',
                  textAlign: TextAlign.center))

You can see that **continue reading…**