style.css

@font-face {
  font-family: "Sansita";
  src: url("/assets/fonts/SansitaSwashed-VariableFont.woff") format("woff");
  src: url("/assets/fonts/SansitaSwashed-VariableFont.woff2") format("woff2");
}

@font-face {
  font-family: "Creepster";
  src: url("/assets/fonts/Creepster-Regular.woff") format("woff");
  src: url("/assets/fonts/Creepster-Regular.woff2") format("woff2");
}

:root {
  --blue: cornflowerblue;
  --green: rgb(179, 233, 179);
  --red: red;
  --text: "Sansita";
  --text2: "Creepster";
  --titleText: rgb(112, 123, 85);
}

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

body {
  height: 100vh;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--green);
}

h1 {
  position: absolute;
  color: var(--blue);
  z-index: 1;
  top: 100px;
  font-family: var(--text);
  font-size: 4em;
}

p {
  padding: 20px;
  position: absolute;
  bottom: 50px;
  font-family: var(--text2);
  font-size: 3em;
  color: var(--red);
  text-align: center;
}

button {
  background-image: url("assets/images/smileyface.jpg");
  height: 200px;
  width: 200px;
  border-radius: 50%;
  border: 0;
  margin: 20px;
  filter: drop-shadow(5px 5px 7px rgb(65, 65, 65));
}

button:focus {
  outline: 0;
}

.buttons {
  flex-direction: row;
  justify-content: center;
  align-items: center;
  position: absolute;
}

@media (max-width: 745px) {
  body {
    overflow: hidden;
    position: relative;
    width: 100%;
    height: 100vh;
  }
  .buttons {
    display: flex;
    flex-direction: column;
  }
  button {
    height: 130px;
    width: 130px;
    margin: 10px;
    background-image: url("assets/images/smileyfacesmall.jpg");
  }
  h1 {
    top: 40px;
    font-size: 2em;
  }
  p {
    padding: 20px;
    bottom: 10px;
    font-size: 1.2em;
  }
}

@keyframes shake {
  0% {
    transform: translate(2px, 1px) rotate(0deg);
  }
  20% {
    transform: translate(-1px, -2px) rotate(-1deg);
  }
  40% {
    transform: translate(-3px, 0px) rotate(1deg);
  }
  60% {
    transform: translate(0px, 2px) rotate(0deg);
  }
  80% {
    transform: translate(1px, -1px) rotate(1deg);
  }
  100% {
    transform: translate(-1px, 2px) rotate(-1deg);
  }
}

.shake:hover {
  animation-name: shake;
  animation-duration: 0.3s;
  transform-origin: 50% 50%;
  animation-iteration-count: infinite;
}

.shake {
  display: inline-block;
}