body,html{height:100%}.bg_heart{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:-1;overflow:hidden}.heart{position:absolute;top:-50%;-webkit-transform:rotate(-45deg);-moz-transform:rotate(-45deg);-m-transform:rotate(-45deg);transform:rotate(-45deg)}.heart:before{top:-50%;left:0}.heart:after,.heart:before{position:absolute;display:block;content:"";width:100%;height:100%;background:inherit;border-radius:100%}.heart:after{top:0;right:-50%}@-webkit-keyframes love{0%{top:110%}}@-moz-keyframes love{0%{top:110%}}@-ms-keyframes love{0%{top:110%}}@keyframes love{0%{top:110%}}