angular material mat-select drop-down width

Question

The current drop-down box has width greater than the the width of the line:

Is there a way to get rid of the extra width?

Here is my current code:

html:

<mat-form-field>
    <mat-select disableOptionCentering placeholder="Choose an option">
      <mat-option [value]="option" *ngFor="let option of my_list">
          {{ option }}
      </mat-option>
    </mat-select>
</mat-form-field>

my_list:

export const my_list: string[] = [ "a", "b", "c", "d"];

style.css:

.mat-select-panel{
    margin-left: 15px;
    margin-top: 28px;
}

Solution 1

For anyone still trying to figure out without making the actual select smaller or wider.

The mat-select-panel uses 100% of the mat-select width plus 32px

min-width: calc(100% + 32px)

You can override this styling with ng-deep:

::ng-deep .mat-select-panel {
    min-width: 100% !important;
}

Solution 2

Try this

.mat-select-panel:not([class*=mat-elevation-z]){ min-width: calc(100% + 0px) !important; }

Solution 3

Try this and change width:

   <mat-select style="width:10px">

Comments

[Meng]

Hi RikG93, I don't think two posts are talking about the same thing. Here I want to reduce the width of the scrollable panel. The answer in the link provides a solution to load more when scrolling down in the scrollable panel.

[cheesydoritosandkale]

Did you ever figure this out? I am trying to do the same.

[Meng]

This moves the location of the mat-select-arrow. Is it possible to have the mat-select-arrow at the end and the width of scrollable panel = the width of the underline?

[rikg93]

no this change the width, no the location. You could try min-width: calc(100%- 30px) where 30px is an example

[AlePorro]

Worked like a charm for me, thanks!