How to remove an element in HTML?

Question

I need horizontally remove one DIV. The problem that is occurring is that clicking remove is being removed the entire column of DIV.

HTML

<div class="engloba-tudo">

    <div class="produtos container-cart"></div>

    <div id="a" class="subtotal">$</div>

</div>

<div class="item flex">
    <div class="caixinha" onclick="comprar(1)" id="1">
        CARRINHO
    </div>
</div>

CSS

.engloba-tudo {
    position: fixed;
    bottom: 0;
    right: 0;
    width: 30%;
    border-left: 1px solid #333;
    border-right: 1px solid #333;
    border-bottom: 1px solid #333;
    background: #eee;
    z-index: 9999;
}

.subtotal {
    width: 100%;
    border-top: 1px solid #333;
    padding: .7rem;
    cursor: pointer;
    box-sizing: border-box;
    flex-direction: column;
    text-align: center;
}

.img-info, .preco-info, .x-info {
    margin: 5px;
    padding: 4px;
    border: 1px solid grey;
    width: 25%;
    cursor: pointer;
}

.container-cart {
    max-width: 400px;
    margin: 0 auto;
    display: flex;
    border: 1px solid red;
    flex-direction: column;

}

.linha {
    width: 100%;
    flex-wrap: wrap;
    flex-direction: row;
    display: flex;
}

.item-cart {

    flex: 1;
    margin: 5px;
    text-align: center;
    font-size: 1.5em;
    width: calc(33% - 5px);

}

.fas {
    font-size: 50px;
}

JQUERY

var objetos = Array();

$(".subtotal").click(function () {
    $(".produtos").slideToggle(300);
})

function comprar(c) {
    if (c === 1) {
        var preco = '5,00';

        objetos.push(preco);

        var total = objetos.reduce(function (anterior, atual) {
            return parseFloat(anterior) + parseFloat(atual);
        });

        document.getElementById("a").innerHTML = '$ ' + total;

    }
}

$('#1').click(function () {
    var html = '<div class="linha">'
        + '<div class="item-cart img-info">img</div>'
        + '<div class="item-cart preco-info">preço</div>'
        + '<div class="item-cart x-info" onclick="remover(this)">x</div>'
        + '</div>';

    $('.produtos').append(html);
});

function remover(elemento) {
    elemento.parentNode.remove();

    objetos.splice(0,1);

    var total = objetos.length ? objetos.reduce(function(anterior, atual) {
          return parseFloat(anterior) + parseFloat(atual);
      }) : '';

      document.getElementById("a").innerHTML = '$ ' + total;
}

Answer 1

You are adding the elements inside the div that you remove at the end, I made some changes to the code so that whenever it adds it creates a line. When removing, it will remove only this line, follows code:

var objetos = Array();

$(".subtotal").click(function () {
    $(".produtos").slideToggle(300);
})

function comprar(c) {
    if (c === 1) {
        var preco = '5,00';
        
        objetos.push(preco);

        var total = objetos.reduce(function (anterior, atual) {
            return parseFloat(anterior) + parseFloat(atual);
        });

        document.getElementById("a").innerHTML = '$ ' + total;

    }
}

$('#1').click(function () {
    var html = '<div class="linha">'
        + '<div class="item-cart img-info">img</div>'
        + '<div class="item-cart preco-info">preço</div>'
        + '<div class="item-cart x-info" onclick="remover(this)">x</div>'
        + '</div>';

    $('.produtos').append(html);
});

function remover(elemento) {
    elemento.parentNode.remove();
    
    objetos.splice(0,1);
  
    var total = objetos.length ? objetos.reduce(function(anterior, atual) {
	  	  return parseFloat(anterior) + parseFloat(atual);
	  }) : '';

	  document.getElementById("a").innerHTML = '$ ' + total;
}

.engloba-tudo {
    position: fixed;
    bottom: 0;
    right: 0;
    width: 30%;
    border-left: 1px solid #333;
    border-right: 1px solid #333;
    border-bottom: 1px solid #333;
    background: #eee;
    z-index: 9999;
}

.subtotal {
    width: 100%;
    border-top: 1px solid #333;
    padding: .7rem;
    cursor: pointer;
    box-sizing: border-box;
    flex-direction: column;
    text-align: center;
}

.img-info, .preco-info, .x-info {
    margin: 5px;
    padding: 4px;
    border: 1px solid grey;
    width: 25%;
    cursor: pointer;
}

.container-cart {
    max-width: 400px;
    margin: 0 auto;
    display: flex;
    border: 1px solid red;
    flex-direction: column;

}

.linha {
    width: 100%;
    flex-wrap: wrap;
    flex-direction: row;
    display: flex;
}

.item-cart {

    flex: 1;
    margin: 5px;
    text-align: center;
    font-size: 1.5em;
    width: calc(33% - 5px);

}

.fas {
    font-size: 50px;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div class="engloba-tudo">

    <div class="produtos container-cart"></div>

    <div id="a" class="subtotal">$</div>

</div>

<div class="item flex">
    <div class="caixinha" onclick="comprar(1)" id="1">
        CARRINHO
    </div>
</div>