html {
  font-family: sans-serif;
  background: #eee;
  padding: 1rem;
}

body {
  margin: 0 auto;
  background: white;
}

h1, h2, h3, h4, h5, h6 {
  font-family: serif;
  color: #377ba8;
  margin: 1rem 0;
}

#main {
  width:100%;
}

#sparrow {
   position: fixed;
   float: left;
   display: inline-block;
   top: 10px;
   height: 300px;
   max-width: 20%;
   margin-right: 20px;
   overflow: hidden;
}

img {
    width: auto;
    max-height: 100%;
}

#textbox {
  max-width: 50%;
  margin: 0 auto;
  background: white;
}

.footer {
  position: fixed;
  background-color: #eee;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50px;
  width: 100%;
  text-align: center;
  font-size: 10px;
}

#game-board {
  display: flex;
  align-items: center;
  flex-direction: column;
}

.letter-box {
  border: 2px solid gray;
  border-radius: 3px;
  margin: 2px;
  font-size: 2.5rem;
  font-weight: 700;
  height: 3rem;
  width: 3rem;
  display: flex;
  justify-content: center;
  align-items: center;
  text-transform: uppercase;
}

.filled-box {
  border: 2px solid black;
}

.letter-row {
  display: flex;
}

#keyboard-cont {
  margin: 1rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

#keyboard-cont div {
  display: flex;
}

.second-row {
  margin: 0.5rem 0;
}

.keyboard-button {
  font-size: 1rem;
  font-weight: 700;
  padding: 0.5rem;
  margin: 0 2px;
  cursor: pointer;
  text-transform: uppercase;
}

#goal-word {
  display: flex;
  align-items: center;
  flex-direction: column;
  background: white;
}

.goal-letter-box {
  border: 2px solid gray;
  border-radius: 3px;
  margin: 2px;
  font-size: 2.5rem;
  font-weight: 700;
  height: 3rem;
  width: 3rem;
  display: flex;
  justify-content: center;
  align-items: center;
  text-transform: uppercase;
}

.goal-letter-row {
  display: flex;
}

.filled-goal-box {
  border: 2px solid black;
}

.set-goal-box {
  background: green;
}

#guesses-board {
  display: flex;
  align-items: center;
  flex-direction: column;
}

.guess-letter-row {
  display: flex;
}

.guess-letter-box {
  border: 2px solid gray;
  border-radius: 3px;
  margin: 2px;
  font-size: 2.5rem;
  font-weight: 700;
  height: 3rem;
  width: 3rem;
  display: flex;
  justify-content: center;
  align-items: center;
  text-transform: uppercase;
}

/* https://www.w3schools.com/howto/howto_js_collapsible.asp */
.collapsible {
  background-color: #eee;
  color: #444;
  cursor: pointer;
  padding: 18px;
  width: 100%;
  border: none;
  text-align: left;
  outline: none;
  font-size: 15px;
}

.active, .collapsible:hover {
  background-color: #ccc;
}

.collapsible:after {
  content: '\02795'; /* Unicode character for "plus" sign (+) */
  font-size: 13px;
  color: white;
  float: right;
  margin-left: 5px;
}

.active:after {
  content: "\2796"; /* Unicode character for "minus" sign (-) */
}

.remaining-words-content {
  padding: 0 18px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease-out;
  background-color: #f1f1f1;
}