Hello,
follow this
link
, you will find a tutorial that explain how reach your Css file and create a custom Css.
Once, you have understand where you can add your Css code, use this kind of code.
A little advice, put your custom code at the end of your frontend_custom.css, that will be more easy later to find and maybe correct it
May I suggest you something for your Css code? If you use a custom Css code in order to pass height : 100%,
You will have, I think an other issue, see screenshot on below :
So, I suggest to apply this Css code :
For your
align the text and your text
color :
a.hikashop_cart_button {
margin : 7px 0px 10px 0px;;
}
your selector :
a.hikashop_cart_button
your css order:
criteria
Css value:
position, color etc...
As result :
Hope this will help you.
Regards,