I would like to change the color of the 'Check Out' button on the Shopping cart page

Site URL: https://www.madabean.com/cart

I would like to change the color of the "check out" button on my shopping cart page from black to my colors pallet. How would I do this? 

Add to Design > Custom CSS

/* Checkout button */
.checkout-button {
    background: green !important;
}
.checkout-button span {
    color: red;
}

3 hours ago, tuanphan said:

Add to Design > Custom CSS

/* Checkout button */
.checkout-button {
    background: green !important;
}
.checkout-button span {
    color: red;
}

This didn't work... 

 

On 2/10/2021 at 12:17 AM, MadaBean said:

 

Add to Settings > Advanced > Code Injection > Header

<style>
  /* Checkout button */
.checkout-button {
    background: green !important;
}
.checkout-button span {
    color: red;
}
</style>