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HTML

              
                <!DOCTYPE html>
<html>
  <head>
    <title>Flexbox patterns practice</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="stylesheet" type="text/css" href="styles.css" />
  </head>
  <body>
    <!--TO DO add and play with header/footer

    verify the idea: for large screens nav-panel/header can be sticky,

                    for small ones navpanel can fill significant 
                    amount of VW, so kinda want breakpoint rule for that,
                    to reset navpanel behaviour
                    
                    same can(??or not) applied for footer
    -->

    <div class="flexcontainer">
<!--boxes numerated:
when vertically: from top to bottom
when horizontally(inline): from left to right -->
        <div class="box firstbox">
            <p>Some lorem ipsum stuff</p>
        </div>
        <div class="box secondbox">
            <p>Some lorem ipsum stuff</p>
        </div>
        <div class="box thirdbox">
            <p>Some lorem ipsum stuff</p>
        </div>
        <div class="box fourthbox">
            <p>Some lorem ipsum stuff</p>
        </div>
    </div>
  </body>
</html>
              
            
!

CSS

              
                * {/*reset some props for work from scratch

    TODO: figure out: more approaches for reset
    ALSO TODO: figure out: definitely for most CSS files there can be most common
    boilerplates just like for HTML.
    */
    margin: 0;
    padding: 0;
}

body {
    height: 100vh;
    font-size: 1rem;/*also need minsize for fonts, 
                    or maintain size with breakpoints more flexible*/
}

.flexcontainer {
    height: 100%;
    /*don't need any change in flex-direction, can deal with default values*/
    display: flex;
    flex-wrap: wrap;
}

body, .flexcontainer, .box {
    width:100% /*every .box will fit on its own row for small screens*/
}

/*colorcoding boxes for testing/experimenting purposes*/

/*min-max height will depend on amount of text
or image size
or any content-specifics*/

.box {
    min-height:300px;
    max-height:600px;
    /*min-width:300px; that was crappy idea*/
}

.firstbox {
    background-color: rgb(17, 168, 105);
}

.secondbox {
    background-color: crimson;
}

.thirdbox {
    background-color: rgb(213, 187, 192);
}

.fourthbox {
    background-color: rgb(242, 233, 235);
}

/*breakpoint values for mediaqueries for now generic,

actual breakpoints MUST depend on content
*/

/*FIGURE OUT about hiding/changing text dependin g on breakpoints
with pure CSS

is there elegant approach or we need
many properties like for SCREENREADERS-ONLY
*/

/*first breakpoint >>> need 3-row layout, minimize middle boxes*/

@media screen and (min-width: 500px) {
    .secondbox, .thirdbox {
        width: 50%; 
    }
}

/*second breakpoint minimize the rest >>> 2-row layout*/

@media screen and (min-width: 900px) {
    .box {
        width: 50%; 
    }
}

/*for some very wide VW >>> lets make it one row*/

@media screen and (min-width: 1350px) {
    .box {
        width: 25%;
    }
}
              
            
!

JS

              
                
              
            
!
999px

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