body {
  color: #353535;
  text-align: center;
  background: #cccccc;
  margin: 0 30px 100px 30px;
  font: 14px/18px "Lucida Grande", "Segoe UI", sans-serif;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -moz-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -moz-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  -moz-box-orient: vertical;
  -moz-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  padding-top: 30px;
}

h1 {
  font: bold italic 50px Georgia, serif;
}

canvas {
  display: block;
  background: rgb(240, 240, 240);
  -webkit-border-radius: 20px;
  border-radius: 20px;
  -moz-border-radius: 20px;
  margin: 10px auto;
  -webkit-box-shadow: 0 0 10px 2.5px #00000020;
  -moz-box-shadow: 0 0 10px 2.5px #00000020;
  box-shadow: 0 0 10px 2.5px #00000020;
  -webkit-transition: scale 100ms ease-in, -webkit-box-shadow 500ms ease,
    -webkit-transform 500ms ease;
  transition: scale 100ms ease-in, -webkit-box-shadow 500ms ease,
    -webkit-transform 500ms ease;
  -o-transition: box-shadow 500ms ease, scale 100ms ease-in,
    -o-transform 500ms ease;
  -moz-transition: box-shadow 500ms ease, transform 500ms ease,
    scale 100ms ease-in, -moz-box-shadow 500ms ease, -moz-transform 500ms ease;
  -webkit-transition: scale 100ms ease-in, -webkit-box-shadow 500ms ease,
    -webkit-transform 500ms ease;
  transition: scale 100ms ease-in, -webkit-box-shadow 500ms ease,
    -webkit-transform 500ms ease;
  -o-transition: box-shadow 500ms ease, scale 100ms ease-in,
    -o-transform 500ms ease;
  -moz-transition: box-shadow 500ms ease, transform 500ms ease,
    scale 100ms ease-in, -moz-box-shadow 500ms ease, -moz-transform 500ms ease;
  -webkit-transition: scale 100ms ease-in, -webkit-box-shadow 500ms ease,
    -webkit-transform 500ms ease;
  transition: scale 100ms ease-in, -webkit-box-shadow 500ms ease,
    -webkit-transform 500ms ease;
  -o-transition: box-shadow 500ms ease, scale 100ms ease-in,
    -o-transform 500ms ease;
  -moz-transition: box-shadow 500ms ease, transform 500ms ease,
    scale 100ms ease-in, -moz-box-shadow 500ms ease, -moz-transform 500ms ease;
  -webkit-transition: scale 100ms ease-in, -webkit-box-shadow 500ms ease,
    -webkit-transform 500ms ease;
  transition: scale 100ms ease-in, -webkit-box-shadow 500ms ease,
    -webkit-transform 500ms ease;
  -o-transition: box-shadow 500ms ease, scale 100ms ease-in,
    -o-transform 500ms ease;
  -moz-transition: box-shadow 500ms ease, transform 500ms ease,
    scale 100ms ease-in, -moz-box-shadow 500ms ease, -moz-transform 500ms ease;
  transition: box-shadow 500ms ease, transform 500ms ease, scale 100ms ease-in;
  transition: box-shadow 500ms ease, transform 500ms ease, scale 100ms ease-in,
    -webkit-box-shadow 500ms ease, -moz-box-shadow 500ms ease,
    -webkit-transform 500ms ease, -moz-transform 500ms ease,
    -o-transform 500ms ease;
  transition: box-shadow 500ms ease, transform 500ms ease, scale 100ms ease-in,
    -webkit-box-shadow 500ms ease, -moz-box-shadow 500ms ease,
    -webkit-transform 500ms ease, -moz-transform 500ms ease,
    -o-transform 500ms ease;
  transition: box-shadow 500ms ease, transform 500ms ease, scale 100ms ease-in,
    -webkit-box-shadow 500ms ease, -moz-box-shadow 500ms ease,
    -webkit-transform 500ms ease, -moz-transform 500ms ease,
    -o-transform 500ms ease;
  transition: box-shadow 500ms ease, transform 500ms ease, scale 100ms ease-in,
    -webkit-box-shadow 500ms ease, -moz-box-shadow 500ms ease,
    -webkit-transform 500ms ease, -moz-transform 500ms ease,
    -o-transform 500ms ease;
  outline: 0 solid rgb(240, 240, 240);
}

a {
  color: black;
}

div {
  text-align: left;
}

.error {
  display: block;
  color: red;
  font-size: 28px;
  line-height: 30px;
  padding: 30px;
}

p {
  margin: 30px 0;
  line-height: 20px;
}

.center {
  text-align: center;
}

textarea {
  display: none;
  width: 75%;
  height: 400px;
  margin: 0 auto;
}

button {
  color: #101010;
  background-color: #ababab;
  border: none;
  outline: none;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  padding: 0.5vh;
  margin: 0.1%;
  cursor: pointer;
  -webkit-transition: background-color 200ms, outline 50ms;
  -o-transition: background-color 200ms, outline 50ms;
  -moz-transition: background-color 200ms, outline 50ms;
  transition: background-color 200ms, outline 50ms;
  -webkit-box-shadow: 0 0 1px 0.5px #00000020;
  -moz-box-shadow: 0 0 1px 0.5px #00000020;
  box-shadow: 0 0 1px 0.5px #00000020;
  outline: 0px solid #ababab;
}

button:not([disabled]):hover {
  background-color: #979797;
  outline: 2px solid #979797;
  -webkit-transition: background-color 200ms, outline 100ms;
  -o-transition: background-color 200ms, outline 100ms;
  -moz-transition: background-color 200ms, outline 100ms;
  transition: background-color 200ms, outline 100ms;
}

.toolbar {
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -moz-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -moz-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
  -webkit-flex-direction: row;
  -moz-box-orient: horizontal;
  -moz-box-direction: normal;
  -ms-flex-direction: row;
  flex-direction: row;
  width: 75%;
}

.toolbar * {
  margin: 0.5em;
}

#selectedObj,
#run {
  -webkit-transition: 100ms;
  -o-transition: 100ms;
  -moz-transition: 100ms;
  transition: 100ms;
}

@-webkit-keyframes reveal {
  from {
    height: 0;
    opacity: 0;
  }
  to {
    height: 30px;
    opacity: 1;
  }
}

@-moz-keyframes reveal {
  from {
    height: 0;
    opacity: 0;
  }
  to {
    height: 30px;
    opacity: 1;
  }
}

@-o-keyframes reveal {
  from {
    height: 0;
    opacity: 0;
  }
  to {
    height: 30px;
    opacity: 1;
  }
}

@keyframes reveal {
  from {
    height: 0;
    opacity: 0;
  }
  to {
    height: 30px;
    opacity: 1;
  }
}

@-webkit-keyframes disappear {
  from {
    display: block;
    height: 30px;
    opacity: 1;
  }
  to {
    display: block;
    height: 0;
    opacity: 0;
  }
}

@-moz-keyframes disappear {
  from {
    display: block;
    height: 30px;
    opacity: 1;
  }
  to {
    display: block;
    height: 0;
    opacity: 0;
  }
}

@-o-keyframes disappear {
  from {
    display: block;
    height: 30px;
    opacity: 1;
  }
  to {
    display: block;
    height: 0;
    opacity: 0;
  }
}

@keyframes disappear {
  from {
    display: block;
    height: 30px;
    opacity: 1;
  }
  to {
    display: block;
    height: 0;
    opacity: 0;
  }
}

#history {
  width: 700px;
  margin-top: 1em;
  -webkit-transition: all 0.3s;
  -o-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}

#history:hover {
  height: 30px;
  background-color: rgb(211, 211, 211);
  -webkit-transform: translateY(-7.5px);
  -moz-transform: translateY(-7.5px);
  -ms-transform: translateY(-7.5px);
  -o-transform: translateY(-7.5px);
  transform: translateY(-7.5px);
  -webkit-transition: all 0.3s;
  -o-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}

input[type="range"] {
  -moz-appearance: none !important;
  appearance: none !important;
  -webkit-appearance: none !important;
  background-color: #101010;
  height: 15px;
  background-color: #bbbbbb;
  border: 1px solid #bdbdbd;
  -webkit-border-radius: 10px;
  -moz-border-radius: 10px;
  border-radius: 10px;
  -webkit-transition: all 0.3s;
  -o-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}

input[type="range"]:hover {
  background-color: #bbbbbba2;
  -webkit-transition: all 0.3s;
  -o-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}

#history:hover ~ canvas {
  -webkit-transform: scale(0.95) translateY(-15px);
  -moz-transform: scale(0.95) translateY(-15px);
  -ms-transform: scale(0.95) translateY(-15px);
  -o-transform: scale(0.95) translateY(-15px);
  transform: scale(0.95) translateY(-15px);
  -webkit-box-shadow: 0 0 15px 10px #00000020;
  -moz-box-shadow: 0 0 15px 10px #00000020;
  box-shadow: 0 0 15px 10px #00000020;
}

#rangeSlider {
  -webkit-transition: all 200ms ease;
  -o-transition: all 200ms ease;
  -moz-transition: all 200ms ease;
  transition: all 200ms ease;
}

#context-menu {
  position: fixed;
  z-index: 10000;
  width: 140px;
  background: #dadada;
  -webkit-border-radius: 0 10px 10px 10px;
  -moz-border-radius: 0 10px 10px 10px;
  border-radius: 0 10px 10px 10px;
  display: none;
  -webkit-transform-origin: top left;
  -moz-transform-origin: top left;
  -ms-transform-origin: top left;
  -o-transform-origin: top left;
  transform-origin: top left;
}

#context-menu.visible {
  display: block;
  -webkit-animation: pop 100ms linear;
  -moz-animation: pop 100ms linear;
  -o-animation: pop 100ms linear;
  animation: pop 100ms linear;
  -webkit-transform: scale(1);
  -moz-transform: scale(1);
  -ms-transform: scale(1);
  -o-transform: scale(1);
  transform: scale(1);
  -webkit-transform-origin: top left;
  -moz-transform-origin: top left;
  -ms-transform-origin: top left;
  -o-transform-origin: top left;
  transform-origin: top left;
}

@-webkit-keyframes pop {
  from {
    scale: 0.7;
  }
  to {
    scale: 1;
  }
}

@-moz-keyframes pop {
  from {
    scale: 0.7;
  }
  to {
    scale: 1;
  }
}

@-o-keyframes pop {
  from {
    scale: 0.7;
  }
  to {
    scale: 1;
  }
}

@keyframes pop {
  from {
    scale: 0.7;
  }
  to {
    scale: 1;
  }
}

#context-menu .item {
  padding: 8px 10px;
  font-size: 15px;
  color: #1b1a1a;
  cursor: pointer;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  outline: 0px solid #dadada;
  -webkit-transition: 50ms;
  -o-transition: 50ms;
  -moz-transition: 50ms;
  transition: 50ms;
}

#context-menu:not(.selected) .item:nth-child(3),
#context-menu:not(.selected) .item:nth-child(5),
#context-menu:not(.selected) .item:nth-child(7) {
  display: none;
}

#context-menu .item:hover {
  background: rgb(192, 192, 192);
  outline: 3px solid rgb(192, 192, 192);
  -webkit-transition: 100ms;
  -o-transition: 100ms;
  -moz-transition: 100ms;
  transition: 100ms;
}

li {
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -moz-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: start;
  -webkit-justify-content: start;
  -moz-box-pack: start;
  -ms-flex-pack: start;
  justify-content: start;
}

li:last-child {
  -webkit-box-align: start;
  -webkit-align-items: start;
  -moz-box-align: start;
  -ms-flex-align: start;
  align-items: start;
}

li b {
  margin-right: 5px;
}

table {
  width: 120px;
}

td#symbol {
  text-align: center;
}

input#height,
input#width,
input[type="text"] {
  width: 30px;
  background: none;
  border: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

input:focus {
  outline: none;
}

#tutorial {
  align-items: center;
  justify-content: center;
  display: inline-flex;
  position: fixed;
  top: 10px;
  left: 10px;
  width: 150px;
  padding: 5px 5px 5px 0;
  height: 30px;
  flex-direction: row;
}

#tutorial * {
  margin: 2px;
}

#info {
  -webkit-box-align: start;
  -webkit-align-items: start;
  -moz-box-align: start;
  -ms-flex-align: start;
  align-items: start;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -moz-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  display: -webkit-inline-box;
  display: -webkit-inline-flex;
  display: -moz-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  position: fixed;
  top: 60px;
  left: 10px;
  padding: 5px;
  height: 80px;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  -moz-box-orient: vertical;
  -moz-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
}

#info * {
  margin: 2px;
}