Black_Star,
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
body {
margin: 0;
}
.form_label {
position: relative;
min-height: 88px;
}
.form_text {
vertical-align: top;
display: block;
margin-bottom: 6px;
font-weight: 500;
font-size: 12px;
line-height: 16px;
letter-spacing: .04em;
color: #686EA1
}
.form_text>sup {
position: relative;
top: 0;
font-size: 13px;
}
.field_multiselect {
position: relative;
width: 100%;
display: block;
border: 1px solid #CDD6F3;
box-sizing: border-box;
border-radius: 8px;
padding: 12px 40px 10px 16px;
outline-color: #CDD6F3;
}
.field_multiselect::placeholder {
color: #A8ACC9;
}
.field_multiselect {
padding-right: 60px;
}
.field_multiselect:after {
content: "";
position: absolute;
right: 14px;
top: 15px;
width: 6px;
height: 16px;
background: url("../images/svg-icons/two-arrows.svg") 50% 50% no-repeat;
}
.multiselect_block {
position: relative;
width: 100%;
}
.field_select {
position: absolute;
top: calc(100% - 2px);
left: 0;
width: 100%;
border: 2px solid #CDD6F3;
border-bottom-right-radius: 2px;
border-bottom-left-radius: 2px;
box-sizing: border-box;
outline-color: #CDD6F3;
}
.field_select[multiple] {
overflow-y: auto;
}
.field_select option {
display: block;
padding: 8px 16px;
width: calc(370px - 32px);
}
.field_select option:checked {
background-color: #ECEFF3;
}
.field_multiselect button {
position: relative;
padding: 7px 34px 7px 8px;
background: #EBE4FB;
border-radius: 4px;
}
.field_multiselect button:after {
content: '';
position: absolute;
top: 10px;
right: 10px;
width: 16px;
height: 16px;
background: url("../images/svg-icons/icon-close.svg") 50% 50% no-repeat;
background-size: contain;
}
.multiselect_label {
position: absolute;
top: 1px;
left: 2px;
width: 100%;
height: 44px;
z-index: 3;
}
.field_select {
display: none;
}
input.multiselect_checkbox {
position: absolute;
right: 0;
top: 0;
width: 40px;
height: 40px;
border: none;
opacity: 0;
}
.multiselect_checkbox:checked~.field_select {
display: block;
}
.multiselect_checkbox:checked~.multiselect_label {
width: 40px;
left: initial;
right: 4px;
background: #fff url("../images/svg-icons/icon-close.svg") 50% 50% no-repeat;
}
</style>
</head>
<body>
<div class="form_label">
<span class="form_text">Products<sup>*</sup></span>
<div class="multiselect_block">
<label for="select-1" class="field_multiselect">Products</label>
<input id="checkbox-1" class="multiselect_checkbox" type="checkbox">
<label for="checkbox-1" class="multiselect_label"></label>
<select id="select-1" class="field_select" name="products" multiple style="height: calc(4 * 38px)">
<option value="Applications">Applications</option>
<option value="Parental controls">Parental controls</option>
<option value="VPN">VPN</option>
<option value="All">All</option>
</select>
</div>
</div>
<script>
let multiselect_block = document.querySelectorAll(".multiselect_block");
multiselect_block.forEach(parent => {
let label = parent.querySelector(".field_multiselect");
let select = parent.querySelector(".field_select");
let text = label.innerHTML;
select.addEventListener("change", function(element) {
let selectedOptions = this.selectedOptions;
label.innerHTML = "";
for (let option of selectedOptions) {
let button = document.createElement("button");
button.type = "button";
button.className = "btn_multiselect";
button.textContent = option.value;
button.onclick = _ => {
option.selected = false;
button.remove();
if (!select.selectedOptions.length) label.innerHTML = text
}
label.append(button)
};
})
})
</script>
</body>
</html>