Change form fields background color and corners

Site URL: https://waivr.co/incubate

Hi, I'm looking to change my form fields background color to transparent and make the form fields themselves have more of a pill shape.

Website: https://waivr.co/incubate

Thank in advance!

Add to Design > Custom CSS

.form-wrapper .field-list .field .field-element:focus {
    background-color: transparent !important;
}
.form-wrapper .field-element {
    border-radius: 20px !important;
}