Design of my home in ionic Framework

I hope you can help me with my design, as you see in this image:

As you can see this messy, icons with the letters of the buttons, on the other hand also does not focus my image, I hope I can help since there is very little of scss in ionic:

<ion-content padding>
    <img style="align-items: center" src="./../assets/logo.png">
    <button ion-button icon-start center round full><ion-icon name="logo-facebook"></ion-icon>Registrate via Facebook</button>
    <button ion-button icon-start center color="secondary" round full><ion-icon name="person-add"></ion-icon>Servicio Particular</button>
    <button ion-button icon-start center color="dark" round full><ion-icon name="briefcase"></ion-icon>Servicio Corporativo</button>
    <p>¿Eres nuevo? <a href="">REGISTRATE AHORA</a></p>

code .scss:

page-home {
    p {
        text-align-last: center;