Custom ion-slides slidesPerView like native

Ionic Framework ionic-v3
1

Hi all,
anyone suggest me to make ion-slides maybe like slidesPerView=“2.5” and for example like this.

home
3. home.jpg1080×2314 768 KB

here my current app.

myapp
myapp.gif452×732 1.2 MB

here my code,

 <ion-slides slidesPerView="2" effect="sides" [pager]="false">
          <ion-slide>
            <ion-card>
              <img src="assets/imgs/rumah-1.jpg" />
              <div class="card-title">
                <p class="line-text" ion-text>Rumah baru tipe 45 di Tangerang Minimalis harga terjangkau</p>
              </div>
            </ion-card>
          </ion-slide>
          <ion-slide>
            <ion-card>
              <img src="assets/imgs/rumah-2.jpg" />
              <div class="card-title">
                <p class="line-text" ion-text>Rumah baru tipe 45 di Depok Minimalis harga terjangkau</p>
              </div>
            </ion-card>
          </ion-slide>
          <ion-slide>
            <ion-card>
              <img src="assets/imgs/rumah-3.jpg" />
              <div class="card-title">
                <p class="line-text" ion-text>Rumah baru tipe 45 di Bekasi Minimalis harga terjangkau</p>
              </div>
            </ion-card>
          </ion-slide>
          <ion-slide>
            <ion-card>
              <img src="assets/imgs/rumah-4.jpg" />
              <div class="card-title">
                <p class="line-text" ion-text>Rumah baru tipe 45 di Bogor Minimalis harga terjangkau</p>
              </div>
            </ion-card>
          </ion-slide>
        </ion-slides>