* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  width: 100%;
}

#main {
  background-color: rgb(157, 218, 157);
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

#panel {
  width: 80%;
  height: 80%;
  background-color: #fff;
  border-radius: 10px;
  overflow: hidden;
}

#panel-top {
  width: 100%;
  height: 100px;
  background-color: rgb(65, 184, 65);
  display: flex;
  align-items: center;
  justify-content: center;
}

.element {
  width: 25px;
  height: 25px;
  background-color: #fff;
  margin-right: 40px;
  margin-left: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: large;
  font-weight: 700;
  display: inline-flex;
  border-radius: 3px;
}

h2 {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  font-weight: 600;
  color: rgb(0, 76, 0);
  font-size: 20px;
}

#panel-bottom {
  width: 100%;
  display: flex;
  padding: 20px;
  height: calc(100% - 100px);
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
}

.bubble {
  width: 40px;
  height: 40px;
  background-color: rgb(113, 188, 113);
  border-radius: 100%;
  margin: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  
}

.bubble:hover{
    background-color: rgb(56, 144, 56);
}