Go to your specific LiveEditor >> click on Page Setting >> Other Scripts >> Custom CSS >> insert the code below:
/* For term and condtion label*/
label{
font-size: 20px !important;
}
/* For term and condition content*/
.terms_conditions .terms_text p {
font-size: 17px !important;
}
/* For term and condition content box height*/
.terms_conditions .terms_text {
height: 200px !important;
}