.grid{width:100px;height:100px;border:1px solid}.center{display:flex;align-self:center;justify-content:center}.row{margin:auto;flex-wrap:nowrap}.col{padding:0}.height-33{height:33%}.red-heart{background-image:url(/picture/heartcrush/red-heart.png)}.black-heart,.red-heart{background-repeat:no-repeat;background-size:contain}.black-heart{background-image:url(/picture/heartcrush/black-heart.png)}.cursor-move{cursor:move}.cursor-pointer{cursor:pointer}.pipe:before{content:"";position:absolute;width:100%;height:100%;background-repeat:no-repeat;background-size:contain}.pipe-grey:before{background-image:url(/picture/heartcrush/pipe-grey.png)}.pipe-red:before{background-image:url(/picture/heartcrush/pipe-red.png)}.pipe-glow:before{background-image:url(/picture/heartcrush/pipe-glow.png)}.pipe-left:before{transform:rotate(-90deg)}.pipe-right:before{transform:rotate(90deg)}.pipe-bottom:before{transform:rotate(180deg)}.fixed-top{left:40%;right:auto;background:#f3bdbd}