@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;900&display=swap");

body {
  background: url(bg.png) no-repeat;
  margin: 0;
  background-attachment: fixed;
  background-position: center;
  background-size: cover;
  text-align: center;
}

.parent {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  height: 100vh;
}

h1 {
  font-family: "Montserrat", sans-serif;
  font-size: 6vmax;
  font-weight: 900;
  text-shadow: 1px 1px 1px #000;
  color: #304c8c;
  margin: 0 0 2px 0;
  filter: opacity(85%);
}
h3 {
  font-family: "Montserrat", sans-serif;
  font-size: 2.5vmax;
  font-weight: 600;
  text-shadow: 1px 1px 1px #000;
  color: #304c8c;
  margin: 2px;
  filter: opacity(85%)
}
h2 {
  font-family: "Montserrat", sans-serif;
  font-size: 24px;
  font-weight: 400;
  text-shadow: 1px 1px 1px #000;
  color: #304c8c;
  margin: 40px 40px 40px 40px;
  filter: opacity(85%)
}
a {
  color: #3d60b3;
  text-decoration: none;
  display: block;
}
.button {
  background: transparent;
  color: #3d60b3;
  border-radius: 10px;
  border-style: solid;
  border-color: #3d60b3;
  padding: 15px 18px 15px 18px;
  margin: 10px 12% 0px 12%;
  font-family: "Montserrat", sans-serif;
  text-shadow: 1px 1px 1px #000;
  font-size: 3vmax;
  filter: opacity(65%);
}

#button-1 {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

#button-1 a {
  position: relative;
  transition: all .15s ease-Out;
}

#circle {
  width: 0%;
  height: 0%;
  opacity: 0;
  line-height: 40px;
  border-radius: 50%;
  background: #3d60b3;
  position: absolute;
  transition: all .2s ease-Out;
  top: 70px;
  left: 70px;
  margin: auto;
}

#button-1:hover #circle {
  width: 150%;
  height: 850%;
  opacity: 1;
  top: -110%;
  left: -25%;
  margin: auto;
}

#button-1:hover a {
  color: #fff;
}

#button-1:active #circle {
  background: #304c8c;
}

#button-1:active a {
  color: #BCBCBC;
}