Hey everyone, a few days ago I faced a challenge with centering an input element and someone suggested a solution which worked perfectly. You can view the solution on Stack Overflow.
The CSS for centering the input element is quite simple and standard:
header {
position: relative;
}
header img {
display: block;
max-width: 100%;
}
.location-search-container {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
}
.input-group {
margin-top: -17px;
top: 50%;
position: absolute;
}
However, the same person also suggested another unique solution using padding. Although I found it less complicated, I couldn't fully grasp how it was achieving the desired result. Here is the code snippet with padding:
header {
position: relative;
}
header img {
display: block;
max-width: 100%;
}
.location-search-container {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
padding-top: 30%;
}
.input-group {
margin-top: -17px;
}
You can see the modified solution here.
It seems that padding-top:30% is the key to achieving the desired outcome. Can someone provide a simple explanation of how this works? It appears to be a cleaner and more elegant solution in my opinion. When I asked the individual who provided the solution, they mentioned the following:
As I said, top padding uses the parent's width as a basis. Depending on aspect ratio, it must be larger or smaller than half the parent height.
Despite their explanation, I'm still struggling to understand. Could someone simplify this for me?
Thank you,
Alex-Z.