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

body {
  font-family: "Yrsa", serif;
  line-height: 1.6;
  font-size: 18px;
}

* {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

#app {
  font-family: "Yrsa", serif;
  min-height: 100dvh;
  background-color: #e4e72c;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  overflow: hidden;
  position: relative;
}
#app header {
  padding: 10px;
  background-color: #313131;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: end;
      -ms-flex-pack: end;
          justify-content: end;
  height: 100px;
}
#app header button {
  font-size: 2em;
  padding: 0;
  line-height: 1;
  width: 3.5rem;
  height: 3.5rem;
  text-align: center;
  cursor: pointer;
}
#app header button[aria-expanded=true] {
  background-color: #ac4b06;
}
#app main {
  min-height: calc(100dvh - 100px);
  padding: 40px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}
#app aside {
  position: absolute;
  top: 98px;
  right: 0;
  width: 100%;
  max-width: 340px;
  background-color: #313131;
  padding: 40px;
}
#app aside ul {
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: 1fr;
  grid-template-columns: 1fr;
  gap: 20px;
  list-style: none;
}
#app aside button {
  display: block;
  width: 100%;
  padding: 0.5em 1em;
  font-family: "Yrsa", serif;
  font-size: 1em;
  cursor: pointer;
}
#app[example-number="2"] aside {
  -webkit-transform: translateX(100%);
          transform: translateX(100%);
  -webkit-transition: -webkit-transform 2s ease-out;
  transition: -webkit-transform 2s ease-out;
  transition: transform 2s ease-out;
  transition: transform 2s ease-out, -webkit-transform 2s ease-out;
}
#app[example-number="2"] aside.visible {
  -webkit-transform: translateX(0);
          transform: translateX(0);
}

#app[example-number="3"] aside {
  -webkit-transform: translateX(100%);
          transform: translateX(100%);
  -webkit-transition: -webkit-transform 2s ease-out;
  transition: -webkit-transform 2s ease-out;
  transition: transform 2s ease-out;
  transition: transform 2s ease-out, -webkit-transform 2s ease-out;
}
#app[example-number="3"] aside.visible {
  -webkit-transform: translateX(0);
          transform: translateX(0);
}
@starting-style {
  #app[example-number="3"] aside {
    -webkit-transform: translateX(100%);
            transform: translateX(100%);
  }
}