How to change Accordion Block Arrow (Down arrow to Right Arrow)

You have an Accordion Block, and you want to change Down Arrow to Right Arrow.

You can use this code to Custom CSS box

li.accordion-item:not([data-is-open="true"]) .arrow {
    transform: translatey(-25%) rotate(-45deg);
}

Result

To change arrow when accordion item is open, use this CSS code under

li.accordion-item[data-is-open="true"] .arrow {
     transform: translatey(-25%) rotate(-135deg);
}