HTML & CSS:
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<style>
@import url("https://fonts.googleapis.com/css2?family=Poppins&display=swap");
* {
margin: 0;
padding: 0;
font-family: "Poppins", sans-serif;
}
.main {
width: 100%;
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
}
.btn {
width: 240px;
height: 40px;
position: relative;
display: flex;
justify-content: center;
align-items: center;
}
.btn button {
width: 100%;
background: #1f4690;
border: none;
padding: 15px 35px;
font-size: 0.9rem;
color: white;
cursor: pointer;
outline: none;
border-radius: 10px;
box-shadow: 10px 10px 25px #1f47908b;
}
.minusBtn,
.plusBtn {
display: none;
font-weight: 700;
margin: 0 5px;
}
</style>
<div class="main">
<div class="btn">
<button class="minusBtn">-</button>
<button class="mainBtn">ADD TO CART</button>
<button class="plusBtn">+</button>
</div>
</div>
JS Code:
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let btn = document.querySelector(".mainBtn"); let mbtn = document.querySelector(".minusBtn"); let pbtn = document.querySelector(".plusBtn");
btn.addEventListener("click", () => { if (btn.innerText == "ADD TO CART") { btn.innerText = 1; pbtn.style.display = "inline-block"; mbtn.style.display = "inline-block";}});
mbtn.addEventListener("click", () => { if (btn.innerText == 5) { pbtn.style.visibility = "hidden";} if (btn.innerText < 2) { btn.innerText = "ADD TO CART"; pbtn.style.visibility = "visible"; pbtn.style.display = "none"; mbtn.style.display = "none";} else { btn.innerText = btn.innerText - 1;}});
pbtn.addEventListener("click", () => { btn.innerText = +btn.innerText + +1; if (btn.innerText == 5) { pbtn.style.visibility = "hidden";}});
