-moz-user-select: none;
-ms-user-select: none;
-o-user-select: none;
-webkit-user-select: none;
user-select: none;<div class="div1">
<div class="div2">
Тут контент
</div>
</div>.div1 {
width: 300px;
height: 500px;
overflow: hidden;
}
.div2 {
overflow-y: scroll;
max-height: 100%;
width: 100%;
padding-right: 45px;
background: lightpink;
}