.sipario{margin-top:0;margin-bottom:0;-webkit-box-sizing:border-box;box-sizing:border-box}.sipario *,.sipario *:before,.sipario *:after{-webkit-box-sizing:inherit;box-sizing:inherit}.sipario__child{margin-top:0;margin-bottom:0;position:relative}.sipario__child--fixed{position:fixed !important;top:0;z-index:0}