h1,
h2,
h3,
p {
  margin: 0;
}
body {
  background-color: rgb(111, 96, 96);
  font-family: sans-serif;
  letter-spacing: 0.03em;
  font-size: 20px;
}

.container {
  padding: 0 15px;
  margin: 0 auto;
}
.button {
  padding: 10px;
  border: 2px solid black;
  border-radius: 10px;
  font-size: inherit;
}
.button:hover {
  /* box-shadow: 5px 5px 5px gray;
   */
  box-shadow: inset 0 5px 5px rgba(0, 0, 0, 0.1), 0 0 0 2px gray, 0.3em 0.3em 1em rgba(0, 0, 0, 0.3);
}
.header {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
  padding-top: 20px;
}
.list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.canvas-area {
  height: 60vh;
  width: 80vw;
  background-color: gray;
  margin: 0 auto 20px;
  border: 3px solid rgb(79, 22, 150);
  position: relative;
  /* overflow: hidden; */
}

.add-buttons__list {
  display: flex;
  justify-content: space-evenly;
}

.block {
  width: 30px;
  height: 30px;
  position: absolute;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 12px;
}

/* canvas center */
.test-block {
  display: none;
  position: absolute;
  top: 50%;
  right: 50%;
  transform: translate(50%, -50%);
  background-color: aqua;
  width: 30px;
  height: 30px;
}
.is-hidden {
  display: none;
}
.backdrop {
  position: absolute;
  top: 0;
  background-color: rgb(111, 96, 96);
  width: 100vw;
  height: 100vh;
}
.about-modal {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 300px;
  padding: 20px;
  border: 3px solid black;
  border-radius: 10px;
  background-color: gray;
  display: flex;
  align-items: center;
}
