style.css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: sans-serif;
}
body {
  height: 100vh;

  padding: 5% 5% 0% 5%;
  display: flex;
  flex-direction: column;
  background-color: #121212;
  background-image: url("assets/bg.png");
  background-size: cover;
}
#header_block {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
#main_block {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

#board_row {
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: space-evenly;
}

#radio_row {
  align-self: center;
}

.image_container {
  margin: 26px;
  position: relative;
  display: inline-block;
  text-align: center;
  aspect-ratio: 1;
  flex-grow: 1;
  border: 2px solid #2c2c2c;
  background-color: #121212;
  border-radius: 30px;
}
#draw_cta {
  position: absolute;
  top: -91px;
  right: -124px;
}
#eraser {
  position: absolute;
  top: calc(50% - 31px);
  right: -31px;
  padding: 16px;
  border-radius: 50%;
  border: none;
  background-color: rgba(255, 255, 255, 0.2);
}
#eraser_icon {
  display: inline-block;
  width: 30px;
  height: 30px;
  background-image: url(assets/eraser.png);
  background-size: cover;
}
#footer_block {
  position: relative;
  display: flex;
  flex-direction: row;
  justify-content: center;
  margin-top: 30px;
  margin-bottom: 5%;
}
input[type="radio"] {
  visibility: hidden;
}
input[type="radio"] + label {
  display: inline-block;
  font-weight: normal;
  font-size: 20px;
  color: white;
  padding: 10px 20px;
  border-radius: 48px;
  border: 1px solid #494949;
}
input[type="radio"]:checked + label {
  background-color: #c0c0af;
  color: black;
}

#fullscreen {
  transition: 150ms;
  position: absolute;
  bottom: 0;
  right: 0;

  margin: auto;
  height: fit-content;
  width: fit-content;
  background-color: rgba(255, 255, 255, 0.2);
  border-color: transparent;
  border-radius: 50%;
  padding: 16px;
  display: flex;
  justify-content: center;
  align-items: center;
  outline: none;
  cursor: pointer;
}
/* .fullscreen:hover {
  background-color: rgba(255, 255, 255, 1);
} */