How to add hover effects on different elements from the same div - html

Question

Hey everyone this is my first time posting here.
My question is how can I add different hover effects on elements from a div.
I have a div that contains 3 elements: an image, a button, and a paragraph, I already have a scale effect on the div to change the size of the whole container but I would also want to change the color of the button when hovering anywhere on the div, not necessarily on the button. The same applies to the image.
The div:
<div class="float_tab">
<img src="./NY_2.jpeg" alt="imagine"/>
<p>Lorem ipsum dolor, sit amet consectetur adipisicing elit. Laboriosam vel ipsum autem, sed aut sunt repellat laudantium aspernatur fugiat dolorem.</p>
<input class="btn" value="Enter" type="button">
</div>
The stylization
.float_tab:hover{
transform: scale(1.3);
}
.float_tab {
width: 210px;
height: 300px;
background-color: rgb(128, 177, 220, 0.7);
border-radius: 10px;
display: inline-block;
position: relative;
top:-1500px;
left: 570px;
margin-right: 100px;
transition: 1s;
}
img {
width: 210px;
height: 120px;
border-radius: 5px;
opacity: 0.8;
}
p {
text-align: center;
font-weight: bold;
font-size: 14px;
}
.btn {
height: 20px;
width: 90px;
margin-left: 60px;
margin-top: 10px;
background-color: #80b1dc;
align-items: center;
border-radius: 5px;
}

Answer 1

css will only apply effects to matching elements so:
<script>
.float_tab:hover img{
//css here
}
.float_tab:hover .btn{
//css here
}
</script>
<div class="float_tab">
<img src="./NY_2.jpeg" alt="imagine"/>
<p>Lorem ipsum dolor, sit amet consectetur adipisicing elit. Laboriosam vel ipsum autem, sed aut sunt repellat laudantium aspernatur fugiat dolorem.</p>
<input class="btn" value="Enter" type="button">
</div>
will do.

Answer 2

It is possible to add a new style for child elements:
.float_tab:hover input, img {
background-color: lightgreen;
}
An example:
.float_tab:hover input, img{
background-color: lightgreen;
}
<div class="float_tab">
<img alt="foo image" alt="imagine" />
<p>Lorem ipsum dolor, sit amet consectetur adipisicing elit. Laboriosam vel ipsum autem, sed aut sunt repellat
laudantium aspernatur fugiat dolorem.</p>
<input class="btn" value="Enter" type="button">
</div>