Got anchor links but they wont go to the right place

Thanks to some of the other threads on anchor links, I got mine up and running for the most part. The problem is, they're overshooting their target by a good margin on every one. Can someone tell me what I'm missing? This is the code block I have on the page

Heres the page : www.thetenmg.com/event

Also, how do i make it so the menu can be collapsed to the side if they dont want to use it?
 

This is the code block on the page to get the links visible on the right

<ul class="tp-float-buttons">
        <li><a href="#WHAT">WHAT</a></li>
        <li><a href="#WHO">WHO</a></li>
        <li><a href="#WHEN">WHEN</a></li>
  <li><a href="#WHERE">WHERE</a></li>
  <li><a href="#SPONSOR">SPONSOR</a></li>
  <li><a href="#GUEST">GUEST LIST</a></li>
</ul>
<style>
ul.tp-float-buttons {
    position: fixed;
    top: 15%;
    right: 3px;
    z-index: 999;
    list-style: none;
    padding-left: 0;
    margin: 0;
}
ul.tp-float-buttons a {
    color: white;
    background-color: black;
    padding: 3px;
    margin-bottom: 2px !important;
    display: inline-block;
    min-width: 125px;
    text-align: center;
  font-size: smaller;
  top: 125px;
  position: relative;
 
}
</style>

And this is the CSS code i had pertaining to it:

html {
  scroll-behavior: smooth;
  scroll-margin: 300px;
}
.anchor {
    display: block;
    position: relative;
    top: -150px;
    visibility: hidden;
  #WHAT {top: -250px;}
}

and finally this is the code block i put in the very top of each section for the anchor links to refer to:

<div ID="GUEST"></div> 

and

<div ID="WHEN"></div> 

and

<div ID="WHO"></div> 


etc etc

3 hours ago, LeauxFi said:

Thanks to some of the other threads on anchor links, I got mine up and running for the most part. The problem is, they're overshooting their target by a good margin on every one. Can someone tell me what I'm missing? This is the code block I have on the page

 

Heres the page : www.thetenmg.com/event

 

Also, how do i make it so the menu can be collapsed to the side if they dont want to use it?
 

<ul class="tp-float-buttons">
        <li><a href="#WHAT">WHAT</a></li>
        <li><a href="#WHO">WHO</a></li>
        <li><a href="#WHEN">WHEN</a></li>
  <li><a href="#WHERE">WHERE</a></li>
  <li><a href="#SPONSOR">SPONSOR</a></li>
  <li><a href="#GUEST">GUEST LIST</a></li>
</ul>
<style>
ul.tp-float-buttons {
    position: fixed;
    top: 15%;
    right: 3px;
    z-index: 999;
    list-style: none;
    padding-left: 0;
    margin: 0;
}
ul.tp-float-buttons a {
    color: white;
    background-color: black;
    padding: 3px;
    margin-bottom: 2px !important;
    display: inline-block;
    min-width: 125px;
    text-align: center;
  font-size: smaller;
  top: 125px;
  position: relative;
 
}
</style>

 

 

And this is the CSS code i had pertaining to it:

html {
  scroll-behavior: smooth;
  scroll-margin: 300px;
}
.anchor {
    display: block;
    position: relative;
    top: -150px;
    visibility: hidden;
  #WHAT {top: -250px;}
}

 

I think the reason is the header get over the anchor link so you target is hidden after header. We need to add some addition space for anchor link. 

Currently I find that:

the code block for id #what have 2 elements: div and a element. We should remove the a element, keep only the div and add class on it

The other code block is missing the class anchor

Kindly change the code block, the code should go well