Feature request - expansion panel option to only expand/collapse on ▽ or △ · Issue #8190 · angular/components · GitHub
How can I prevent a mat-expansion-panel from opening when clicked? · Issue #17651 · angular/components · GitHub
![html - Vertically aligning mat-expansion-panel header after misalignment due to adding icon-button to description - Stack Overflow html - Vertically aligning mat-expansion-panel header after misalignment due to adding icon-button to description - Stack Overflow](https://i.stack.imgur.com/C44Rm.png)
html - Vertically aligning mat-expansion-panel header after misalignment due to adding icon-button to description - Stack Overflow
![Angular Material 9|8 Add Expansion Panel and Accordion in Angular project using Material « Freaky Jolly Angular Material 9|8 Add Expansion Panel and Accordion in Angular project using Material « Freaky Jolly](https://www.freakyjolly.com/wp-content/uploads/2019/06/angular-material-expension-panel-demo.gif)