<div class="container">
  <div class="card" id="card1">Card 1</div>
  <div class="card" id="card2">Card 2</div>
  <div class="card" id="card3">Card 3</div>
  <button id="toggleButton">Hide</button>
</div>

.container {
  display: flex;
    justify-content: center;
    flex-wrap: nowrap;
    align-items: flex-start;
}

.card {
       background-color: #5e9646;
    color: #fff;
    
    border-radius: 0.5em;
    padding: 0.5em;
    margin: 0.2em;
    width: 200px;
    height: 90px;
    max-width: 18%;
    max-height: 90px;
    text-align: center;
    display: inline-block;
    
}

button {
  width: 60px;
  height: 40px;
}

.hidden {
color:rgba(0,0,0,0);
background-color:rgba(0,0,0,0);
}


const card2 = document.querySelector("#card2");
const toggleButton = document.querySelector("#toggleButton");

toggleButton.addEventListener("click", () => {
  card2.classList.toggle("hidden");
});

External CSS

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External JavaScript

This Pen doesn't use any external JavaScript resources.