* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #e80202;
  overflow: hidden;
}

h1 {
  z-index: 10;
  color: #fff;
}

.heart {
  position: absolute;
  width: 40px;
  height: 40px;
  background: #e80202;
  transform: rotate(45deg);
  box-shadow: 20px 20px 40px rgba(0, 0, 0, 0.2);
}

.heart:before {
  content: '';
  position: absolute;
  top: -50%;
  left: 0;
  width: 100%;
  height: 100%;
  background: #e80202;
  border-radius: 50%;
  box-shadow: 0 -20px 20px rgba(0, 0, 0, 0.1);
}

.heart:after {
  content: '';
  position: absolute;
  top: 0;
  left: -50%;
  width: 100%;
  height: 100%;
  background: #e80202;
  border-radius: 50%;
  box-shadow: -20px 0px 20px rgba(0, 0, 0, 0.1);
}