You can override the default CSS by converting CSS to JSON format and including it using the 'data-donately-custom-css' attribute.
Here is a handy tool for converting your CSS to JSON
Here is a handy tool for validating your JSON CSS
Excape single quotes with the HTML character entity
&
#
39;
Here is an example of what valid CSS as JSON looks like:
{
".donately-donation-form":{
"background-color":"#688B9C",
"padding":"4px"
},
"label.donately-label, .donately-custom-fields section":{
"color":"#fff",
"font-family":"sans-serif"
},
".donately-secure-fields label.donately-label":{
"color":"#688B9C"
},
".donately-donation-amount":{
"margin-top":"6px"
},
".donately-btn":{
"background-color":"#113A4E !important"
},
".donately-btn:hover":{
"background-color":"#285469 !important"
},
".donately-btn.donately-submit":{
"text-shadow":"none",
"font-family":"sans-serif",
"text-transform":"uppercase",
"font-size":"12px",
"letter-spacing":".2em",
"padding":"12px 40px",
"position":"relative",
"left":"150px",
"margin-bottom":"20px"
},
"label.donately-label[for=donately-one-time-donation]":{
"visibility":"hidden"
},
"label.donately-label[for=donately-one-time-donation]:after":{
"content":"'Singola donazione'",
"left":"-115px"
},
"label.donately-label:after":{
"visibility":"visible",
"display":"inline-block",
"position":"relative",
"text-align":"left"
}
}