Align buttons to the bottom of container

Hi, I am trying to align the buttons/modal to the bottom of the containers.

I have tried the following CSS, but it doesn’t work:

.uagb-container-inner-blocks-wrap {
	display: flex;
	flex-direction: column;
}
.wp-block-uagb-container .uagb-block-a22c61b2 {
    display: flex;
    flex-direction: column;
}
.wp-block-uagb-modal .uagb-block-9d25637a .uagb-modal-wrapper{
	margin-top: auto;
}
.uagb-spectra-button-wrapper .wp-block-button {
	margin-top: auto;
}

Is there any settings I can use or any changes to the above CSS to align the buttons to the containers?