original.css

.box {
  width: 150px;
  height: 150px;
  background-color: red;
}
button {
	width: 80px;
	height: 30px;
	margin-top: 10px;
	border: none;
	border-radius: 8px;
	background-color: #000;
	color: #fff;
	cursor: pointer;
	outline: none;
}

.circle {
	width: 80px;
	height: 80px;
	background-color: blue;
	display: block;
	margin-top: 10px;
	border-radius: 100%;
}

.heart {
	display: inline-block;
    position: relative;
    width: 100px;
    height: 90px;
    margin-top: 10px;
}
.heart:before,
.heart:after {
    position: absolute;
    content: "";
    left: 50px;
    top: 0;
    width: 50px;
    height: 80px;
    background: red;
    -moz-border-radius: 50px 50px 0 0;
    border-radius: 50px 50px 0 0;
    -webkit-transform: rotate(-45deg);
       -moz-transform: rotate(-45deg);
        -ms-transform: rotate(-45deg);
         -o-transform: rotate(-45deg);
            transform: rotate(-45deg);
    -webkit-transform-origin: 0 100%;
       -moz-transform-origin: 0 100%;
        -ms-transform-origin: 0 100%;
         -o-transform-origin: 0 100%;
            transform-origin: 0 100%;
}
.heart:after {
    left: 0;
    -webkit-transform: rotate(45deg);
       -moz-transform: rotate(45deg);
        -ms-transform: rotate(45deg);
         -o-transform: rotate(45deg);
            transform: rotate(45deg);
    -webkit-transform-origin: 100% 100%;
       -moz-transform-origin: 100% 100%;
        -ms-transform-origin: 100% 100%;
         -o-transform-origin: 100% 100%;
            transform-origin :100% 100%;
}
.black{
	width: 150px;
	height: 50px;
	line-height: 50px;
	text-align: center;
	background-color: black;
	margin-bottom: 30px;
	margin-top: 30px;
	color: #fff;
}