body{
  margin: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  --blue: #1976D2;
  --gray: #3A3A3A;
  --dark-gray: #1e1e1e;
}

#app{
  display: flex;
  height: 100%;
  flex-direction: column;
}

.output,
.input{
  display: flex;
  width: 100%;
  height: 50%;
}


.output__preview{
  box-sizing: border-box;
  border: none;
}
.output__preview--code{
  flex-grow: 1;
}

.input{
  box-sizing: border-box;
  border-top: 4px solid var(--blue);
  background: var(--dark-gray);
}

.tabs{
  list-style: none;
  padding: 0;
  margin: 0;
  padding: 0 12px;
}
.tabs__tab{
  border: 2px solid var(--gray);
  box-sizing: border-box;
  width: 32px;
  height: 32px;
  padding: 24px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin: 16px 0;
  user-select: none;
}
.tabs__tab.active,
.tabs__tab:hover{
  border-color: var(--blue);
}
.input__editors{
  width: 100%;
  position: relative;
  /* padding-top: 8px; */
}
.input__editor{
  width: 100%;
  height: 100%;
  background: purple;
  z-index: 1;
  position: absolute;
}
.input__editor.active{
  z-index: 2;  
}