how to have a perfect responsive css circles? [duplicate] - css

Question

This question already has answers here:
A grid layout with responsive squares
(5 answers)
Closed 5 years ago.
In process of learning flexbox, and confused about having perfect CSS circles that are responsive. How do I do that? As it stands, my current code has circle1, circle2, and circle3 at 100 width, and height. I don't want to hard-code their height but rather make it responsive. Is there a way to have a perfect circle in %? So it scales each time the browser is resized?
Or are media queries the only option to fix this?
Thank you for your help.
* {
box-sizing: border-box;
}
html, body {
height: 100%;
font-family: sans-serif;
font-weight: 100;
}
body {
display: flex;
margin: 0;
flex-direction: column;
}
main {
display: flex;
flex: 1 0 100%;
/*for content and sidebar */
flex-direction: row;
}
/* main */
#content {
flex: 1 0 80%;
/* for header/logo and description */
display: flex;
flex-direction: column;
}
#description img {
display: block;
}
#header {
flex: 1 0 5%;
padding: 10px;
/* for test */
display: flex;
justify-content: center;
}
#test {
display: flex;
flex-direction: row;
}
#header h1 {
text-align: center;
font-size: 5em;
padding: 0;
margin: 0;
font-family: 'Satisfy', cursive;
}
h1 {
font-family: 'Satisfy', cursive;
}
#description {
flex: 1 0 10%;
padding: 30px;
display: flex;
}
#description p {
padding-left: 20px;
font-size: 20px;
}
#description img {
width: 250px;
height: 250px;
border-radius: 50%;
border: 6px solid #db6525;
border: 6px solid #00B2AC;
}
#name {
font-size: 35px;
color: #db6525;
font-family: 'Satisfy', cursive;
}
#test img {
display: inline;
vertical-align: text-top;
width: 100px;
height: 100px;
/* for the following image and description */
display: flex;
flex-direction: row;
align-content: center;
align-items: center;
}
#sidebar {
flex: 1 0 20%;
/* background-color: green; */
text-align: center;
line-height: 90%;
/* for sidebar contents */
display: flex;
flex-direction: column;
}
#js {
flex: 1 0 33.33333%;
/* background-color: red; */
background-color: #db6525;
border: 20px solid #00B2AC;
padding: 10px;
}
#js h1 {
font-size: 50px;
}
#forms {
flex: 1 0 33.33333%;
/* background-color: gray; */
background-color: #db6525;
border: 20px solid #00B2AC;
padding: 10px;
}
#forms h1 {
font-size: 50px;
}
#sites {
flex: 1 0 33.33333%;
/* background-color: Chartreuse; */
background-color: #db6525;
border: 20px solid #00B2AC;
padding: 10px;
}
#sites h1 {
font-size: 50px;
}
.circles {
flex: 0 0 5%;
/* for circles within */
display: flex;
justify-content: center;
align-items: center;
width: 100%;
}
.circle1 {
flex: 0 1 33.33333%;
display: flex;
justify-content: center;
}
.circle1 h1{
font-size: 12px;
color: #fff !important;
background-color: #db6525;
border: 4px solid #00B2AC;
border-radius:50%;
height: 100px;
width: 100px;
text-align: center;
vertical-align: middle;
}
.circle2 {
flex: 0 1 33.33333%;
display: flex;
justify-content: center;
}
.circle2 h1 {
font-size: 12px;
color: #fff !important;
background-color: #db6525;
border: 4px solid #00B2AC;
border-radius:50%;
height: 100px;
width: 100px;
text-align: center;
vertical-align: middle;
}
.circle3 {
flex: 0 1 33.33333%;
display: flex;
justify-content: center;
}
.circle3 h1 {
font-size: 12px;
color: #fff !important;
background-color: #db6525;
border: 4px solid #00B2AC;
border-radius:50%;
height: 100px;
width: 100px;
text-align: center;
vertical-align: middle;
}
<main>
<section id="content">
<article id="header">
<section id="test">
<h1>My Website</h1>
</section>
</article>
<article id="description">
<img src='images/profilePic.png' />
<p></p>
</article>
<article class="circles">
<div class="circle1">
<h1>Twitter</h1>
</div>
<div class="circle2">
<h1>Blog</h1>
</div>
<div class="circle3">
<h1>Contact</h1>
</div>
</article>
</section>
<section id="sidebar">
<article id="js">
<h1>Javascript</h1>
<p>Mini JS Projects</p>
<p class="subtitle">Work in progress
</article>
<article id="forms">
<h1>Free Forms</h1>
<p>Feel free to download the forms</p>
</article>
<article id="sites">
<h1>Portfolio</h1>
<p>Combination of previous work and additional sites</p>
</article>
</section>
</main>

Answer 1

The question now is How to have a perfect responsive css square? Because when you have a square, you will easily have a circle with border-radius: 50%. Now you can found so many solution for it in SO. Here is a nice solution with flexbox item.
.flex-container {
padding: 0;
margin: 0;
display: flex;
}
.flex-item {
background: tomato;
margin: 5px;
color: white;
flex: 1 0 auto;
border-radius: 50%;
}
.flex-item:before {
content:'';
float:left;
padding-top:100%;
}
<div class="flex-container">
<div class="flex-item ">
</div>
<div class="flex-item ">
</div>
<div class="flex-item ">
</div>
</div>

Answer 2

Updated answer
I reworked the flex containers to a minimal working example. The flex-items should all be set to
flex: 1 1 auto /* flex-grow flex-shrink flex-basis */
This allows the circle h1 flex-items to grow and shrink as necessary. It might be necessary to use js to obtain the height of a circle from its expanded width when you apply the example to your code.
Hope this helps.
html,
body {
margin: 0;
padding: 0;
font-family: sans-serif;
}
.circles {
/* for circles within */
display: flex;
justify-content: center;
height: 100%;
width: 100%;
}
.circle1,
.circle2,
.circle3 {
display: flex;
flex: 1 1 auto;
width: 33vw;
height: 33vw;
}
.circle1 h1,
.circle2 h1,
.circle3 h1 {
flex: 1 1 auto;
width: 100%;
height: 100%;
font-size: 12px;
color: #fff !important;
background-color: #db6525;
border: 4px solid #00B2AC;
border-radius: 50%;
text-align: center;
vertical-align: middle;
}
<article class="circles">
<div class="circle1">
<h1>Twitter</h1>
</div>
<div class="circle2">
<h1>Blog</h1>
</div>
<div class="circle3">
<h1>Content</h1>
</div>
</article>