html {  position: relative;  min-height: 100%;}body {  margin-bottom: $footer-height;  min-height: 100vh;position: relative}.l-footer,.l-push{    height:230px}.a-push{    height:30px}.footer{    position:fixed;    left:0;    bottom:0;    min-height:70px;    width:100%;    overflow-y:auto;    z-index:0;}.footer {  bottom: 0;  width: 100%;  height: $footer-height;  position: absolute; bottom: 0; left: 0;}@media (max-width: 991px){ .footer {  bottom: 0;  width: 100%;  height: $footer-height;  position: relative; bottom: 0; left: 0;}}@media (max-width: 768px){.l-footer,.l-push{    height:50px}}