Remove gap to the right of a list - html

Question

I am trying to make a web page that looks similar to a mobile phones home page. I would like it to reorder the icons depending on the size of the screen.
what I have so far is bellow
ul {
list-style: none;
padding: 0;
}
li {
display: inline-block;
width: 5em;
height: 5em;
padding: 1em;
margin: 1em;
background-color: rgba(20, 20, 20, 0.7);
border-radius: 1em;
}
img {
width: 100%;
height: 100%;
}
<ul>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
</ul>
The problem with this code is that when you resize the window and the list items move to the next line, you can be left with a big gap on the right hand side. Is there a way I can distribute this extra space either by centering the list as whole or between the list items? I would like to avoid centering the icons so I can keep them all aligned both horizontally and vertically.

Answer 1

I change from inline-block to float:left and i move your padding to img
ul {
list-style: none;
padding: 0;
animation: FadeIn 1.3s;
width: 100%;
}
li {
float: left;
background-color: rgba(20, 20, 20, 0.7);
border-radius: 1em;
width: 13.42%;
}
ul li:not(:first-child){
margin-left: 1%;
}
img {
width: 82%;
padding: 8%;
}
<ul>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
</ul>

Answer 2

I just copied your code and added media queries. I hope this would help.
CSS Added:
#media only screen and (max-width: 768px) {
ul {
padding: 10%;
}
}
ul {
list-style: none;
padding: 0;
animation: FadeIn 1.3s;
}
li {
display: inline-block;
width: 5em;
height: 5em;
padding: 1em;
margin: 1em;
background-color: rgba(20, 20, 20, 0.7);
border-radius: 1em;
}
img {
width: 100%;
height: 100%;
}
#media only screen and (max-width: 768px) {
ul {
padding: 10%;
margin-top: 0;
}
}
<ul>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
<li>
<a href="http://www.google.com">
<img class=link src="https://www.google.com.au/images/branding/googleg/1x/googleg_standard_color_128dp.png">
</a>
</li>
</ul>