.custom-box-module{box-sizing:border-box;margin-bottom:16px;width:100%}.custom-box-richtext{display:block;width:100%}.custom-box-richtext,.custom-box-richtext__inner{box-sizing:border-box}.custom-box-richtext__inner>:first-child{margin-top:0}.custom-box-richtext__inner>:last-child{margin-bottom:0}