body {
  box-sizing: border-box;
  background: #e2e1e0;
  font-family: "Roboto", sans-serif;
}

a {
  text-decoration: none;
}

.wrap {
  position: relative;
  width: 300px;
  height: 600px;
  background-color: #fff;
  margin-right: auto;
  margin-left: auto;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  padding: 30px;
}
.wrap .box-1, .wrap .box-2, .wrap .box-3 {
  height: 100x;
  width: 100px;
  line-height: 100px;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
}
.wrap .box-1:hover, .wrap .box-2:hover, .wrap .box-3:hover {
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
}
.wrap .box-1 {
  position: absolute;
  background-color: #b2ff59;
  top: 50%;
  left: 20px;
  z-index: 1;
}
.wrap .box-2 {
  position: absolute;
  background-color: #76ff03;
  top: 60%;
  left: 40px;
  z-index: 1;
}
.wrap .box-3 {
  position: absolute;
  background-color: #64dd17;
  top: 70%;
  left: 60px;
  z-index: 1;
}
.wrap .box-4 {
  position: absolute;
  top: 240px;
  height: 50px;
  width: 80%;
  line-height: 50px;
  text-align: center;
  margin: 0px auto 0px auto;
  background-color: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
}
.wrap .box-4:hover {
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
}
.wrap .circle-button {
  position: absolute;
  top: 300px;
  left: 250px;
  height: 50px;
  width: 50px;
  line-height: 50px;
  border-radius: 50%;
  background-color: #ff9800;
  color: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  align-items: center;
}
.wrap .circle-button svg {
  display: inline-block;
  width: 100%;
  text-align: center;
}
.wrap .circle-button:hover {
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
}
.wrap .circle-button:active {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
}