<div class="container">
  <p class="textAbove">I am </p>
  <p class="typeText"></p>
</div>

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

html, body {
  width: 100%;
}

.container {
  width: 100%;
  height: 100vh;
  display: flex;  
  background-image: url("https://images.unsplash.com/photo-1522071820081-009f0129c71c?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=750&q=80");

  flex-flow: column;
  justify-content: center;
  align-items: center;
}

p {
  font-size: xx-large;
  color: white;
}

.typeText::after {
  content: "|";
  /* animation: blink 1s step-end infinite; */
  animation:  none;
}

.showAnim.typeText::after {
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% {opacity: 1;}
  50% {opacity: 0;}
}

var typeText = document.querySelector(".typeText")
var textToBeTyped = "a software engineer"
var textToBeTypedArr = ["a software engineer", "a warlord", "a king", "a peasant"]
var index = 0, isAdding = true, textToBeTypedIndex = 0

function playAnim() {
  setTimeout(function () {
    // set the text of typeText to a substring of the text to be typed using index.
    typeText.innerText = textToBeTypedArr[textToBeTypedIndex].slice(0, index)
    if (isAdding) {
      // adding text
      if (index > textToBeTypedArr[textToBeTypedIndex].length) {
        // no more text to add
        isAdding = false
        typeText.classList.add("showAnim")
        //break: wait 2s before playing again
        setTimeout(function () {
          typeText.classList.remove("showAnim")
          playAnim()
        }, 2000)
        return
      } else {
        // increment index by 1
        index++
      }
    } else {
      // removing text
      if (index === 0) {
        // no more text to remove
        isAdding = true
        //switch to next text in text array
        textToBeTypedIndex = (textToBeTypedIndex + 1) % textToBeTypedArr.length
      } else {
        // decrement index by 1
        index--
      }
    }
    // call itself
    playAnim()
  }, isAdding ? 120 : 60)
}
// start animation
playAnim()