style.css

ol,
li {
  list-style: none;
}

* {
  margin: 0;
  padding: 0;
}

.icon {
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  fill: currentColor;
  overflow: hidden;
}

#xxx {
  background: white;
  display: block;
  position: fixed;
  top: 0;
  left: 0;
}

body {
  margin: 0;
}

.actions {
  position: fixed;
  top: 0;
  left: 0;
  padding: 20px;


}

.actions svg {
  width: 1.5em;
  height: 1.5em;
  transition: all 0.3s;
  margin: 0 10px;

}

.actions svg.active {
  fill: red;
  transform: scale(1.3)
}

.color {
  position: fixed;
  top: 60px;
  left: 28px;
}

.color li {
  width: 20px;
  height: 20px;
  margin: 10px 0;
  border: 1px solid #ffffff;
  border-radius: 50%;
  transition: all 0.3s;
}

.color li.red {
  background: red;
}

.color li.green {
  background: green;
}

.color li.blue {
  background: blue;
}
.color li.black {
  background: black;
}

.color li.active {
  transform: scale(1.3);

}

.size {
  position: fixed;
  top: 5px;
  right: 20px;
}

.size li {
  height: 20px;
  width: 20px;
  margin: 15px 0;
}

.size li.thin {
  border-top: 3px solid black;
}

.size li.thick {
  border-top: 6px solid black;
}