CSS positioning questions - do I use float, position, or display? - html

Question

I wonder if anyone can help me understand a little more on positioning
I've read a lot of information regarding floats, position types and flex.
I understand the basics of it, but i´m having trouble with the simple things.
Which is the regular way professional front end developers use to positioning elements? Do they use float, position: relative|absolute or do they use flexbox or css grid? Or a combination of all?
Do professional developers use CSS reset everytime they make a new website?
I am making a header(it doesnt have a nav bar..just a logo and a title)
I want the logo to be on the left, and the title on the right.
So if i use inline-block i get this weird result where "World Guitars" is not aligned to the logo, but a little below.
#logo {
height: 60px;
width: 50px;
border: 2px solid #34495e;
margin: 2px;
align-self: center;
}
header p {
font-family: Poppins;
font-size: 2em;
margin-left: 500px;
align-self: center;
}
header p,
img {
display: inline-block;
}
<header>
<img src="images/logoGM.jpg" alt="logo" id="logo">
<p>World Guitars</p>
</header>
If i do it with floats, it gets better, but its still so strange..
header p {
float: right;
width: 900px;
}
header img {
float: left;
}
section nav ul {
clear: both;
}
<header>
<img src="images/logoGM.jpg" alt="logo" id="logo">
<p>World Guitars</p>
</header>
Finally in position:relative, and absolute I'm kind of lost.
Can i use position relative and assign values to my heart's content or is this not recommended?
How do i do it in this case?
Thank you!!

Answer 1

Display vs Position vs Float
In general I would say that the modern way to position elements is to use display properties - typically using display:flex or display:grid on parent elements to position their children, or using display:block, display:inline or display:inline-block on an element to position it self.
Where you would use position:relative and position:absolute is if you need to take an element out of flow. A typical case is if you need some elements to overlap. (ie. if you have three canvases that you are laying on top of each other).
Floats were a standard way of positioning elements (ie getting something to sit on the right of the page) in the old days. But now flex box has come along.
However - where you might want to use floats is if you want text to wrap around the element - like it might in a news paper. This is especially important as now HTML elements don't need to be rectangular. See this example.
CSS Resets
I use them. Why not.
These days, typically you might be using some kind of styling library like Material-UI or Bootstrap anyway, but yeah.
In regards to what you're trying to do.
I would use flexbox here.
You have used 'align-self' here - but align-self only applies to a child of a flex parent.
header {
display: flex;
flex-flow: row nowrap;
/*By default this is row wrap - I like to always be explicit with it*/
align-items: center;
/*center vertically, (because the flex flow is row*/
}
img {
border: solid 2px black;
max-height: 100px;
/*size the image*/
object-fit: scale-down;
/*make the image keep it proportions*/
}
p {
font-weight: bold;
font-size: 2em;
}
<header>
<img src="https://www.designevo.com/res/templates/thumb_small/black-wing-and-brown-guitar.png" alt="logo" id="logo">
<p>World Guitars</p>
</header>

Answer 2

I love answering questions like this! Feel free to add additional question comments. Source: I've been doing front-end web development for about 8 years.
Q1. Which is the regular way professional front end developers use to positioning elements?do they use float, position..relative,absolute..or do they use Flex?(or css grid?)Or a combination of all?
The short answer is a combination of all, but there is more to it than that. I would say most of the time developers will use a CSS framework like Bootstrap, Materialize, or Foundation. These frameworks provide a lot of abstraction over writing everything yourself, such as simply defining rows and columns using classes, and simple classes to define how those columns behave when resizing the screen. CSS Grid has a lot of the same concepts as these frameworks, but I would say it is less accessible if you are just starting out.
When it comes to writing custom CSS for things that are specific to your brand or project, I would say most of your larger scale positioning is done with relative positioning (such as padding, margin, width, etc) or flexbox. It is generally not a good idea to create your overall site structure out of absolute position elements or using floats for a few different reasons, which I can go into if you are interested, but positioning something on a small scale, using absolute positioning is common (For example a floating tooltip or a notification popup).
Q2. Do professional developers use CSS reset everytime they make a new website?
It depends. Many frameworks include CSS resets to ensure your website looks the same across browsers. I would generally say it saves time fixing things like odd button shadows in Firefox or extra input borders appearing in Safari.
In regards to your code question, I think this is a perfect application for flexbox! You said "title on the right" so I am unsure if this is exactly what you are looking for.
header {
display: flex;
justify-content: space-between;
align-items: center;
}
.logo {
height: 60px;
width: 50px;
border: 2px solid #34495e;
margin: 2px;
}
.title {
font-family: Poppins;
font-size: 2em;
margin: 0;
}
<header>
<img src="https://placeimg.com/50/60/any" alt="logo" class="logo">
<p class="title">World Guitars</p>
</header>

Answer 3

This depends on your needs and intent. In terms of units, CSS has units that have an absolute size (think centimeters, etc.), and units that are scaled relative to the font size, or relative to the size of the viewport you're working inside. There's no right or wrong unit to use, it depends on what you need. Details on units are here: https://www.w3schools.com/cssref/css_units.asp
In terms of whether to use flexbox or not, it can be a very useful tool if you want elements on the page to be able to scale dynamically, depending on the device or window size they're being displayed in. You can also use it to create responsive pages without javascript, with a combination of flex-wrap and setting minimum widths for elements. But not all designs benefit from flex, and sometimes you need elements that don't shrink or grow depending on the device they're being displayed on. Grid is older than flex, but still useful. It's very commonly used with bootstrap.
In terms of your specific example, I suspect the issue you're seeing is because your text is inside of a <p> block, which puts it on a new line. Try putting it inside of a <span> block instead, and give that block an id so that you can set attributes for that ID in your css if you need to.