Dropdown menu not lining up in list, Trying to get my hover dropdown menu in a list but it wont lineup with Options

[mapguy]

It will include the Hover Dropdown in the list but the bullet point is way off to the left. The code im using:

CSS styling: <style>
.dropbtn {
background-color: white;
color: blue;
padding: 0px;
font-size: 16px;
border: none;
cursor: pointer;
btn-indent: 20px;
width: 235px;
}

.dropdown {
position: relative;
display: inline-block;
}

.dropdown-content {
display: none;
position: absolute;
background-color: white;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
z-index: 1;
}

.dropdown-content a {
color: blue;
padding: 12px 16px;
text-decoration: none;
display: block;
}

.dropdown-content a:hover {background-color: #f1f1f1}

.dropdown:hover .dropdown-content {
display: block;
}

.dropdown:hover .dropbtn {
background-color: #f1f1f1;
}
</style>

HTML list: <ul>
<li class="cent" style="margin-left: 20.0px; text-align: left;"><span style="font-size: large;"><a href="https://www.ok.gov/odot/Programs_and_Projects/Metropolitan_Planning/index.html">Metropolitan Planning Orginization (MPO)</a></span></li>
<li class="cent" style="margin-left: 20.0px; text-align: left;"><span style="font-size: large;"><a href="">Regional Transportation Planning Orginization (RTPO)</a></span></li>
    <div class="dropdown">
<button class="dropbtn"><strong>Bicycle & Pedestrian Planning</strong></button>
<div class="dropdown-content">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</div>
</ul>

Ill attach the html associated with the code for context.

Thanks in advance