.LessonHeader {
  padding-bottom: .5em;
  display: flex;
}
.LessonHeader h2 {
  margin: 0;
  flex: 1;
  display: flex;
}
.LessonHeader__number {
}
.LessonHeader__name {
  flex: 1;
  padding: 0 .3em;
}
.LessonHeader input {
  font: inherit;
  box-sizing: border-box;
  width: 100%;
  padding-left: .3em;
  border: none;
  box-shadow: inset 1px 1px 4px rgba(0,0,0,0.3);
}
.LessonHeader__steps {
  display: flex;
  align-items: stretch;
  padding-right: .3em;
}
.LessonHeader__step {
  width: 2em;
  line-height: 1.9em;
  text-align: center;
  cursor: pointer;
}
.LessonHeader__step--active {
  background-color: #333;
  color: #fff;
  border-radius: 50%;
  cursor: default;
}
.LessonHeader__buttons > button {
  height: 100%;
}
.LessonHeader {
  padding-bottom: .5em;
  display: flex;
}
.LessonHeader h2 {
  margin: 0;
  flex: 1;
  display: flex;
}
.LessonHeader__number {
}
.LessonHeader__name {
  flex: 1;
  padding: 0 .3em;
}
.LessonHeader input {
  font: inherit;
  box-sizing: border-box;
  width: 100%;
  padding-left: .3em;
  border: none;
  box-shadow: inset 1px 1px 4px rgba(0,0,0,0.3);
}
.LessonHeader__steps {
  display: flex;
  align-items: stretch;
  padding-right: .3em;
}
.LessonHeader__step {
  width: 2em;
  line-height: 1.9em;
  text-align: center;
  cursor: pointer;
}
.LessonHeader__step--active {
  background-color: #333;
  color: #fff;
  border-radius: 50%;
  cursor: default;
}
.LessonHeader__buttons {
  display: flex;
  align-items: stretch;
}

Fix huge Reset button in Chrome and IE
Fix huge Reset button in Chrome and IE
