* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: 'Courier New', Courier, monospace;
}

body {
  width: 100%;
  height: 100vh;
  background: linear-gradient(#d52a2a, #344195);
  display: flex;

  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.container {
  position: relative;
  padding: 16px;

  font-size: 2em;
  font-weight: bold;
  
  cursor: pointer;
  
  display: flex;
  justify-content: center;
  align-items: center;
  }
  
.tooltip-content {
  position: absolute; 
  padding: 16px;

  transform: translatey(-100%);
  
  font-size: 0.5em;
  background-color: #fff;
  white-space: nowrap;
  border-radius: 7px;

  visibility: hidden;
  opacity: 0;
  transition: .3s;
  }
  
  .container:hover .tooltip-content{
  visibility: visible;
  opacity: 1;
}

.tooltip-content::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 99%;
  border: 10px solid;
  border-color: #fff #00000000 #0000 #0000;
  z-index: 2;
}