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Adding Classes

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

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Vendor Prefixing

About Vendor Prefixing

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HTML 

              
                <h1>How many ways can you put a box to the right</h1>
<p>Html used is as follows: <code>&lt;div class=&quot;wrap wrap1&quot;&gt;<br>
  &nbsp;  &lt;div class=&quot;box&quot;&gt;1&lt;/div&gt;<br>
  &lt;/div&gt;<br>
  </code></p>
<hr>
<p>Example 1: <code>.wrap1 .box{margin:0 0 0 auto;}</code></p>
<div class="wrap wrap1">
  <div class="box">1</div>
</div>
<p>Example 2: <code>.wrap2 .box{float:right;}</code></p>
<div class="wrap wrap2">
  <div class="box">2</div>
</div>
<p>Example 3: <code>.wrap3 .box{margin-left:calc(100% - 50px)}</code></p>
<div class="wrap wrap3">
  <div class="box">3</div>
</div>
<p>Example 4: <code>.wrap4{text-align:right}<br>
  .wrap4 .box{display:inline-block}<br>
  </code></p>
<div class="wrap wrap4">
  <div class="box">4</div>
</div>
<p>Example 5: <code>.wrap5{position:relative;height:70px;}<br>
  .wrap5 .box{position:absolute;right:10px;top:10px}<br>
  </code></p>
<div class="wrap wrap5">
  <div class="box">5</div>
</div>
<p>Example 6: <code>.wrap6 .box{position:relative;left:calc(100% - 50px);}<br>
  </code></p>
<div class="wrap wrap6">
  <div class="box">6</div>
</div>
<p>Example 7: <code>.wrap7 .box{margin:0 0 0 100%;transform:translateX(-100%);}<br>
  </code></p>
<div class="wrap wrap7">
  <div class="box">7</div>
</div>
<p>Example 8: <code>.wrap8 {transform:rotate(180deg);}<br>
  .wrap8 .box {transform:rotate(180deg);}<br>
  </code></p>
<div class="wrap wrap8">
  <div class="box">8</div>
</div>
<p>Example 9: <code>.wrap9{text-align:right}<br>
  .wrap9 .box{display:inline-table}<br>
  </code></p>
<div class="wrap wrap9">
  <div class="box">9</div>
</div>
<p>Example 10: <code>.wrap10{display:table;width:100%}<br>
  .wrap10 .box{display:table-cell}<br>
  .wrap10:before{content:&quot;&quot;;display:table-cell}<br>
  </code></p>
<div class="wrap wrap10">
  <div class="box">10</div>
</div>
<p>Example 11: <code>.wrap11{display:flex;justify-content:flex-end}<br>
  </code></p>
<div class="wrap wrap11">
  <div class="box">11</div>
</div>
<p>Example 12: <code>.wrap12{display:flex;flex-direction:column}<br>
  .wrap12 .box{align-self:flex-end}<br>
  </code></p>
<div class="wrap wrap12">
  <div class="box">12</div>
</div>
<p>Example 13: <code>.wrap13{direction:rtl}<br>
  </code></p>
<div class="wrap wrap13">
  <div class="box">13</div>
</div>
<p>Example 14 (Not working in IE and buggy in Chrome):<br> <code>.wrap14{text-indent:calc(100% - 50px);display:table;width:100%}<br>
  .wrap14 .box{display:inline-block;text-indent:0;}<br>
  </code></p>
<div class="wrap wrap14">
  <div class="box">14</div>
</div>
<p>Example 15: <code>.wrap15:before {content: &quot;&quot;;float: left;height: 50px;margin: 0 -50px 0 100%;}<br>
  .wrap15 .box{overflow:hidden}<br>
</code></p>
<div class="wrap wrap15">
  <div class="box">15</div>
</div>

<p>Example 16:<br>(Erik.J) <code>.wrap16{ display:table; width:100%; text-align:justify; line-height:0}<br>
.wrap16:before{ content:"\a0"}<br>
.wrap16:after{ display:inline-block; margin-right:100%; content:"\a0"}<br>
.wrap16 .box{ display:inline-block}
</code></p>
<div class="wrap wrap16">
  <div class="box">16</div>
</div>

<p>Example 17:<br>(Erik.J) <code>.wrap17{ display:table; width:100%; text-align:center; word-spacing:-.5em}<br>
.wrap17:after{ display:inline-block; margin-right:-100%; content:"\a0"}<br>
.wrap17 .box{ display:inline-block; margin-right:50px}

</code></p>
<div class="wrap wrap17">
  <div class="box">17</div>
</div>

<p>Example 18:<br>(Erik.J) <code>.wrap18{ display:table; width:100%; word-spacing:-.5em}<br>
.wrap18:before{ display:inline-block; margin-right:-50px; width:100%; content:""}<br>
.wrap18 .box{ display:inline-block}
</code></p>
<div class="wrap wrap18">
  <div class="box">18</div>
</div>

<p>Example 19: Not working in IE11<br> <code>
  .wrap19{position:relative;height:70px;text-align:right;}<br>
.wrap19:after{content:"";margin-right:50px;}<br>
.wrap19 .box{position:absolute;display:inline;}
</code></p>
<div class="wrap wrap19">
  <div class="box">19</div>
</div>


<p>Example 20: Rain Lover<br> <code>
  .wrap20 {display:flex; flex-direction:row-reverse;}
</code></p>
<div class="wrap wrap20">
  <div class="box">20</div>
</div>


<p>Example 21: Rain Lover (only works at viewport widths)<br> <code>
.wrap21 {padding-left:calc(100% - 60px);max-width:none;}
</code></p>
<div class="wrap wrap21">
  <div class="box">21</div>
</div>

<p>Example 22: Rain Lover<br> <code>
.wrap22 {text-align:right;}<br>
.wrap22 .box {display:inline-flex;justify-content:center;}
</code></p>
<div class="wrap wrap22">
  <div class="box">22</div>
</div>


<p>Example 23: Erik J<br> <code>
  .wrap23{ direction:rtl; white-space:nowrap}<br>
.wrap23:before{ float:left; margin-right:999em; content:"\a0"}<br>
.wrap23 .box{ display:inline-block}
</code></p>
<div class="wrap wrap23">
  <div class="box">23</div>
</div>

<p>Example 24: Rain Lover<br> <code>
.wrap24 {display:flex;}<br>
.wrap24:before {content:""; flex:1;}
</code></p>
<div class="wrap wrap24">
  <div class="box">24</div>
</div>

<p>Example 25: Grid layout (Chrome and Firefox only)<br> <code>
.wrap25{display:grid;justify-items:end}
</code></p>
<div class="wrap wrap25">
  <div class="box">25</div>
</div>


<p>Example 26: Rain Lover<br> <code>
.wrap26:before {content:" "; margin: 0 -50px 0 100%;}<br>
.wrap26 .box {display:inline-block;}<br>
</code></p>
<div class="wrap wrap26">
  <div class="box">26</div>
</div>

<p>Example 27: Rain Lover<br> <code>
.wrap27 {display:flex; justify-content:space-between;}<br>
.wrap27:before {content:"";}<br>
</code></p>
<div class="wrap wrap27">
  <div class="box">27</div>
</div>

<p>Example 28: Rain Lover<br> <code>
.wrap28 {display:flex;}<br>
.wrap28:after {content:""; flex:1; order:-1;}<br>
</code></p>
<div class="wrap wrap28">
  <div class="box">28</div>
</div>

<p>Example 29: Rain Lover (Not working in EDGE)<br> <code>
.wrap29 .box {position:-webkit-sticky; position:sticky; left:100%;}<br>
</code></p>
<div class="wrap wrap29">
  <div class="box">29</div>
</div>
<p>Example 30: (Erik.J) <br><code>
  .wrap30{ font-size:0}<br>
.wrap30:first-letter{ margin:0 -50px 0 100%}<br>
.wrap30:before{ content:"x"}<br>
.wrap30 .box{ display:inline-block}<br>
</code></p>
<div class="wrap wrap30">
  <div class="box">30</div>
</div>

<p>Example 31: Rain Lover (viewport width only - 50px will need to increase to accommodate padding)<br> <code>
.wrap31 {border-left:calc(100vw - 50px) solid transparent;}
</code></p>
<div class="wrap wrap31">
  <div class="box">31</div>
</div>

<p>Example 32: Rain Lover <br> <code>
.wrap32 {display:flex; flex-flow:column wrap-reverse;}
</code></p>
<div class="wrap wrap32">
  <div class="box">32</div>
</div>


<p>Example 33: Erik_J <br> <code>
.wrap33{ columns:2 50vw; text-align:right;}<br>
.wrap33:before{ display:inline-block; content:"\a0"}<br>
.wrap33 .box{ display:inline-block}<br>
</code></p>
<div class="wrap wrap33">
  <div class="box">33</div>
</div>


<p>Example 34: Rain Lover <br> <code>
.wrap34 {height:50px; display:flex; flex-flow:column wrap; align-content:flex-end;}<br>
.wrap34:before {content:"\00A0";}<br>
</code></p>
<div class="wrap wrap34">
  <div class="box">34</div>
</div>

<p>Example 35: Rain Lover <br> <code>
.wrap35 {display:table;}<br>
  .wrap35:before {content:""; display:table-cell; width:100%;}</br>
</code></p>
<div class="wrap wrap35">
  <div class="box">35</div>
</div>

<p>Example 36: Erik_J <br> <code>
.wrap36{ text-align:center}<br>
.wrap36 .box{ margin-right:calc(-100% + 50px); display:inline-block}<br>
</code></p>
<div class="wrap wrap36">
  <div class="box">36</div>
</div>

<p>Example 37: Erik_J <br> <code>
.wrap37:after{ float:left; margin:0 -50px 0 calc(100% - 1em); width:1em; content:"\a0"}<br>
.wrap37 .box{ display:inline-block}<br>
</code></p>
<div class="wrap wrap37">
  <div class="box">37</div>
</div>

<p>Example 38: Rain Lover <br> <code>
.wrap38:after {content:"\00A0"; float:left; width:calc(100% - 50px);}<br>
.wrap38 .box {display:inline-block;}<br>
</code></p>
<div class="wrap wrap38">
  <div class="box">38</div>
</div>

<p>Example 39: Rain Lover <br> <code>
.wrap39 {display:flex;}<br>
.wrap39:before {content:""; margin-right:auto;}<br>
</code></p>
<div class="wrap wrap39">
  <div class="box">39</div>
</div>

<p>Example 40: Rain Lover (Not working in IE11) <br> <code>
.wrap40 {height:70px; text-align:right;}<br>
.wrap40 .box {position:absolute; display:inline;margin-left:-50px;}<br>
</code></p>
<div class="wrap wrap40">
  <div class="box">40</div>
</div>

<p>Example 41: Rain Lover <br> <code>
.wrap41 {text-align:justify; text-align-last:right;}<br>
.wrap41 .box {display:inline-block;}<br>
</code></p>
<div class="wrap wrap41">
  <div class="box">41</div>
</div>


<p>Example 42: Rain Lover <br> <code>
.wrap42 {display:flex;}<br>
.wrap42:before {content:""; margin: 0 -50px 0 100%;}<br>
</code></p>
<div class="wrap wrap42">
  <div class="box">42</div>
</div>

<p>Example 43: Rain Lover <br> <code>
.wrap43 {display:flex;}<br>
.wrap43:before {content:""; width:100%;}<br>
.wrap43 .box {flex-shrink:0;}<br>
</code></p>
<div class="wrap wrap43">
  <div class="box">43</div>
</div>

<p>Example 44: Rain Lover <br> <code>
.wrap44 {text-align:justify; text-align-last:justify;}<br>
.wrap44:before {content:"\00A0";}<br>
.wrap44 .box {display:inline-block;}<br>
</code></p>
<div class="wrap wrap44">
  <div class="box">44</div>
</div>


<p>Example 45: Rain Lover (similar to #43) <br> <code>
.wrap45 {display:flex;}<br>
.wrap45:before {content:""; flex-basis:100%;}<br>
.wrap45 .box {flex-shrink:0;}<br>
</code></p>
<div class="wrap wrap45">
  <div class="box">45</div>
</div>

<p>Example 46: Rain Lover (Not working MS Edge) <br> <code>
.wrap46 {text-align:end;}<br>
.wrap46 .box {display:inline-block;}<br>
</code></p>
<div class="wrap wrap46">
  <div class="box">46</div>
</div>


<p>Example 47: ME (Just for fun) <br> <code>
.wrap47 .box {display:none}<br>
.wrap47:after {	content:"47";display:block;	width:50px;	height:50px; line-height:50px; background:red; text-align:center; font-size:20px; font-weight:bold;color:#fff; margin-left:auto;}<br>

</code></p>
<div class="wrap wrap47">
  <div class="box">47</div>
</div>


<p>Example 48: Erik_J (Just for fun) <br> <code>
.wrap48{ max-width:none}<br>
  .wrap48 .box{ visibility:hidden; position:relative}<br>
.wrap48 .box:after{ visibility:visible; position:absolute; top:0; bottom:0; left:calc(100vw - 100% - 37px); width:100%; background:inherit; content:"48"}<br>

</code></p>
<div class="wrap wrap48">
  <div class="box">48</div>
</div>


<p>Example 49: Erik_J ( Chrome 42 and Firefox 53) <br> <code>
.wrap49{ display:table; width:100%; max-width:none; white-space:nowrap; tab-size:calc(100vw - 87px);}<br>
.wrap49:before{ white-space:pre; content:"\09"}<br>
  .wrap49 .box{ display:inline-block}</br>

</code></p>
<div class="wrap wrap49">
  <div class="box">49</div>
</div>

<p>Example 50: Erik_J (Just because he can) <br> <code>
.wrap50{ max-width:none; word-spacing:calc(100vw - 87px); font-size:0}<br>
.wrap50:before{ display:inline-block; content:""}<br<
.wrap50 .box{ display:inline-block}<br>
</code></p>
<div class="wrap wrap50">
  <div class="box">50</div>
</div>

<p>Example 51: Rain Lover <br> <code>
  .wrap51 {display:flex;}<br>
.wrap51:before {content:"\00A0"; text-indent:99999ch; overflow:hidden;}<br>
.wrap51 .box {min-width:50px;}
<br>
</code></p>
<div class="wrap wrap51">
  <div class="box">51</div>
</div>

<p>Example 52: Rain Lover (Just for fun) <br> <code>
 .wrap52 .box {visibility:hidden; width:inherit;}<br>
.wrap52 .box:after {visibility:visible; content:"52"; float:right; width:50px; height:inherit; background:inherit;}
<br>
</code></p>
<div class="wrap wrap52">
  <div class="box">52</div>
</div>

<p>Can you think of any more? </p>
!

CSS 

              
                html,body{margin:0;padding:0;}
html {
  box-sizing: border-box;
}
*, *:before, *:after {
  box-sizing: inherit;
}
p,h1{margin:20px auto 0;max-width:940px;font-weight:bold;}
h1{text-align:center;}
code{display:inline-block;vertical-align:top;font-weight:normal;}
hr{max-width:980px;margin:20px auto;border:none;border-top:1px dotted #000;background:transparent;}
/* demo begins */
.wrap {
	max-width:960px;
	background:#f9f9f9;
	padding:10px;
	margin:10px auto;
	overflow:hidden;
}
.box {
	width:50px;
	height:50px;
	line-height:50px;
	background:red;
	text-align:center;
	font-size:20px;
	font-weight:bold;
	color:#fff;
}

/* magic happens here */
.wrap1 .box{margin:0 0 0 auto;}
.wrap2 .box{float:right;}
.wrap3 .box{margin-left:calc(100% - 50px)}
.wrap4{text-align:right}
.wrap4 .box{display:inline-block}
.wrap5{position:relative;height:70px;}
.wrap5 .box{position:absolute;right:10px;top:10px}
.wrap6 .box{position:relative;left:calc(100% - 50px);}
.wrap7 .box{margin:0 0 0 100%;transform:translateX(-100%);}
.wrap8 {transform:rotate(180deg);}
.wrap8 .box {transform:rotate(180deg);}
.wrap9{text-align:right}
.wrap9 .box{display:inline-table}
.wrap10{display:table;width:100%}
.wrap10 .box{display:table-cell}
.wrap10:before{content:"";display:table-cell}
.wrap11{display:flex;justify-content:flex-end}
.wrap12{display:flex;flex-direction:column}
.wrap12 .box{align-self:flex-end}
.wrap13{direction:rtl}
.wrap14{text-indent:calc(100% - 50px);display:table;width:100%}
.wrap14 .box{display:inline-block;text-indent:0;}
.wrap15:before {content: "";float: left;height: 50px;margin: 0 -50px 0 100%;}
.wrap15 .box{overflow:hidden}

/* Erik.J examples 16 - 18 */
.wrap16{ display:table; width:100%; text-align:justify; line-height:0}
.wrap16:before{ content:"\a0"}
.wrap16:after{ display:inline-block; margin-right:100%; content:"\a0"}
.wrap16 .box{ display:inline-block}

.wrap17{ display:table; width:100%; text-align:center; word-spacing:-.5em}
.wrap17:after{ display:inline-block; margin-right:-100%; content:"\a0"}
.wrap17 .box{ display:inline-block; margin-right:50px}

.wrap18{ display:table; width:100%; word-spacing:-.5em}
.wrap18:before{ display:inline-block; margin-right:-50px; width:100%; content:""}
.wrap18 .box{ display:inline-block}

/* extra one from me */
.wrap19{position:relative;height:70px;text-align:right;}
.wrap19:after{content:"";margin-right:50px;}
.wrap19 .box{position:absolute;display:inline;}
/* end magic */

/* from rain lover */
.wrap20 {display:flex; flex-direction:row-reverse;}
.wrap21 {padding-left:calc(100% - 60px);max-width:none;}
.wrap22 {text-align:right;}
.wrap22 .box {display:inline-flex;justify-content:center;}


/* from Erik J again */
/* reversed CSS Quiz solution */
.wrap23{ direction:rtl; white-space:nowrap}
.wrap23:before{ float:left; margin-right:999em; content:"\a0"}
.wrap23 .box{ display:inline-block}


.wrap24 {display:flex;}
.wrap24:before {content:""; flex:1;}
/* from rain lover */

/* CSS grid layout */
.wrap25{display:grid;justify-items:end}

/* Rain lover */
.wrap26:before {content:" "; margin: 0 -50px 0 100%;}
.wrap26 .box {display:inline-block;}

.wrap27 {display:flex; justify-content:space-between;}
.wrap27:before {content:"";}

.wrap28 {display:flex;}
.wrap28:after {content:""; flex:1; order:-1;}

.wrap29 {overflow:visible;}
.wrap29 .box {position:-webkit-sticky; position:sticky; left:100%;}

/* Erik J */
.wrap30{ font-size:0}
.wrap30:first-letter{ margin:0 -50px 0 100%}
.wrap30:before{ content:"x"}
.wrap30 .box{ display:inline-block}

/* Rain Lover */
.wrap31 {border-left:calc(100vw - 87px) solid transparent;max-width:none;}
.wrap32 {display:flex; flex-flow:column wrap-reverse;}

/* Erik J */
.wrap33{ columns:2 50vw; text-align:right;}
.wrap33:before{ display:inline-block; content:"\a0"}
.wrap33 .box{ display:inline-block}

/* rain lover */
.wrap34 {height:70px; display:flex; flex-flow:column wrap; align-content:flex-end;}
.wrap34:before {content:"\00A0";}

.wrap35 {display:table;}
.wrap35:before {content:""; display:table-cell; width:100%;}

/* erik_J  */
.wrap36{ text-align:center}
.wrap36 .box{ margin-right:calc(-100% + 50px); display:inline-block}

.wrap37:after{ float:left; margin:0 -50px 0 calc(100% - 1em); width:1em; content:"\a0"}
.wrap37 .box{ display:inline-block}

/* rain lover */
.wrap38:after {content:"\00A0"; float:left; width:calc(100% - 50px);}
.wrap38 .box {display:inline-block;}

.wrap39 {display:flex;}
.wrap39:before {content:""; margin-right:auto;}

.wrap40 {height:70px; text-align:right;}
.wrap40 .box {position:absolute; display:inline;margin-left:-50px;}

.wrap41 {text-align:justify; text-align-last:right;}
.wrap41 .box {display:inline-block;text-align-last:center;}

.wrap42 {display:flex;}
.wrap42:before {content:""; margin: 0 -50px 0 100%;}

.wrap43 {display:flex;}
.wrap43:before {content:""; width:100%;}
.wrap43 .box {flex-shrink:0;}

.wrap44 {text-align:justify; text-align-last:justify;}
.wrap44:before {content:"\00A0";}
.wrap44 .box {display:inline-block;text-align-last:center;}

.wrap45 {display:flex;}
.wrap45:before {content:""; flex-basis:100%;}
.wrap45 .box {flex-shrink:0;}

.wrap46 {text-align:end;}
.wrap46 .box {display:inline-block;}

/* me */
.wrap47 .box {display:none}
.wrap47:after {
  content:"47";
  display:block;
 	width:50px;
	height:50px;
	line-height:50px;
	background:red;
	text-align:center;
	font-size:20px;
	font-weight:bold;
	color:#fff;
  margin-left:auto;
}



/* Erik J */
.wrap48{ max-width:none}
.wrap48 .box{ visibility:hidden; position:relative}
.wrap48 .box:after{ visibility:visible; position:absolute; top:0; bottom:0; left:calc(100vw - 100% - 37px); width:100%; background:inherit; content:"48"}

/* Chrome 42 and Firefox 53 */
.wrap49{ display:table; width:100%; max-width:none; white-space:nowrap; tab-size:calc(100vw - 87px);}
.wrap49:before{ white-space:pre; content:"\09"}
.wrap49 .box{ display:inline-block}

.wrap50{ max-width:none; word-spacing:calc(100vw - 87px); font-size:0}
.wrap50:before{ display:inline-block; content:""}
.wrap50 .box{ display:inline-block}

/* Rain Lover */
.wrap51 {display:flex;}
.wrap51:before {content:"\00A0"; text-indent:99999ch; overflow:hidden;}
.wrap51 .box {min-width:50px;}

.wrap52 .box {visibility:hidden; width:inherit;}
.wrap52 .box:after {visibility:visible; content:"52"; float:right; width:50px; height:inherit; background:inherit;}
!

JS
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999px

Console