如何设置角度为4或5的组件背景颜色？

Question

How to style a component in angular? I use angular 5 and I tried this:

:host {
    background-color: green;
    size: 200px 200px;
}

And this:

app-root {
    background-color: green;
    size: 200px 200px;
}

Both approaches don't seem to work.

Answer 1

You also need to set the display property to something like block . This can be seen in the example from the docs:

:host {
    background-color: green;
    size: 200px 200px;
    display: block;
}

The display property is inline by default (you can see this in the developer tools, etc).