How to remove the padding around ion-item?

I had to use custom CSS properties for ion-item

ion-item {
  --inner-padding-bottom: 0;
  --inner-padding-end: 0;
  --inner-padding-start: 0;
  --inner-padding-top: 0;
}

You can solve ion-item padding different way...

First: Using ion-no-padding class

<ion-item class="ion-no-padding">
  <ion-thumbnail>
    <img class="imgmg" src="...">
  </ion-thumbnail> 
  <h2>Text</h2>
</ion-item>

Second: Using css or inline style

<ion-item style="padding:0px !important;">
  <ion-thumbnail>
    <img class="imgmg" src="...">
  </ion-thumbnail> 
  <h2>Text</h2>
</ion-item>

Edit : As Ionic 5.X we must use CSS utilities by class instead of attributes ( ionic/BREAKING.md ).

For those who are using ionic 4, you should use Ionic CSS Utilties for padding

In short, you have to code this:

<ion-item class="ion-no-padding">
  <ion-thumbnail>
    <img class="imgmg" src="...">
  </ion-thumbnail> 
  <h2>Text</h2>
</ion-item>

If you want to remove inner paddding, use ion-item custom CSS properties:

ion-item {
  --padding-end: 0px;
  --inner-padding-end: 0px;
  // here other custom CSS from documentation
}

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