How To Add Multiple Attributes To HTML Object?

I'm trying to make a button that redirects you to a page for my dashboard. However, each button on the dashboard is the not the same size. I'm trying to change the properties of them in my css but I'm unable to change them.

Heres is my HTML and CSS code.

.home {
  opacity: 1;
  width: 140;
}

<button onClick="window.location.href='https://runturtle.glitch.me';" class="home">home</button>