Responsive onesite website padding to centre - html

Question

Im currently working on making onesie scrolling website but i came accross the problem. I want my text be on the centre of first "page" but i cant make it to looks good on phone and desktop at the same time.
With padding-top: 50% it looks good at mobile but terrible at desktop, on the other hand padding-top: 7 looks good on desktop but not much at phone. Can someone help me finding the golden mean?
my html code:
section {
width: 100%;
height: 100vh;
}
.main section.page1 {
background: #81D4FA;
}
.main section.page2 {
background: #F5F5F5;
}
.main section.page3 {
background: #81D4FA;
}
h1 {
font-size: 8vw;
color: #efefef;
text-align: top;
padding-top: 50%;
padding-left: 15%;
}
h2
{
list-style-type: none;
font-size: 4vw;
color: #efefef;
text-align: center;
padding-top: 2%;
}
a.read-more{
border: 2px solid #efefef;
text-decoration: none;
color: inherit;
}
.notnav {
list-style-type: none;
font-size: 3vw;
padding-top: 2%;
padding-left: 5%;
padding-right: 15%;
}
<div class="main">
<section class="page1">
<h1>
ABOUT ME
<li class="notnav">
I am John, 19 years old computer science student. Mainly coding in python, but I am quick lerner and flexible person. I am currently intrested in Artificial Intelligence, Big Data and Design
</li>
</h1>
<h2>
<a class="read-more" href='/about'>Read More</a>
</h2>
</section>
<section class="page2">
<h1>
PROJECTS
</h1>
</section>
<section class="page3">
<h1>
CONTACT
</h1>
</section>
</div>

Answer 1

Try this(without the use of media-query);Sorry late to the party
section {
width: 100%;
height: 100vh;
}
.main section.page1 {
background: #81D4FA;
}
.main section.page2 {
background: #F5F5F5;
}
.main section.page3 {
background: #81D4FA;
}
.page1{
display:flex;
min-height: 100%;
align-items: center;
text-align: center;
flex-direction: column;
justify-content:center;
}
h1 {
font-size: 8vw;
color: #efefef;
}
h2
{
list-style-type: none;
font-size: 4vw;
color: #efefef;
text-align: center;
}
a.read-more{
border: 2px solid #efefef;
text-decoration: none;
color: inherit;
}
.notnav {
list-style-type: none;
font-size: 3vw;
clear: both;
}

Answer 2

Based on your code, here is example of adaption for section.page1 with Media queries. This is what you should use to make your code adapting and responsive.
#media screen and (min-width: 400px){
section {
width: auto;
height: auto;
}
section.page1{
padding: 20px;
}
h1 {
font-size: 8vw;
color: #efefef;
text-align: top;
padding-top: 10px;
padding-left: 15%;
}
}
Here is a large explication about it : Mozilla Developper Using_media_queries
Get more practice and Examples with w3Schools
You can also use bootstrap to get easy css with their grid system : Bootstrap Grid
section {
width: 100%;
height: 100vh;
}
.main section.page1 {
background: #81D4FA;
}
.main section.page2 {
background: #F5F5F5;
}
.main section.page3 {
background: #81D4FA;
}
h1 {
font-size: 8vw;
color: #efefef;
text-align: top;
padding-top: 50%;
padding-left: 15%;
}
h2
{
list-style-type: none;
font-size: 4vw;
color: #efefef;
text-align: center;
padding-top: 2%;
}
a.read-more{
border: 2px solid #efefef;
text-decoration: none;
color: inherit;
}
.notnav {
list-style-type: none;
font-size: 3vw;
padding-top: 2%;
padding-left: 5%;
padding-right: 15%;
}
#media screen and (min-width: 400px){
section {
width: auto;
height: auto;
}
section.page1{
padding: 20px;
}
h1 {
font-size: 8vw;
color: #efefef;
text-align: top;
padding-top: 10px;
padding-left: 15%;
}
}
<div class="main">
<section class="page1">
<h1>
ABOUT ME
</h1>
<div class="notnav">
I am John, 19 years old computer science student. Mainly coding in python, but I am quick lerner and flexible person. I am currently intrested in Artificial Intelligence, Big Data and Design
</div>
<h2>
<a class="read-more" href='/about'>Read More</a>
</h2>
</section>
<section class="page2">
<h1>
PROJECTS
</h1>
</section>
<section class="page3">
<h1>
CONTACT
</h1>
</section>
</div>