style.css

/* this is universal selector known as conflict selector and this not
   inherited */
* {
  /* border-top: 10px solid #1098ad; */
  margin: 0; /* here margin is inherited */
  padding: 0;
  box-sizing: border-box; /* not putting it in body because box sizing
   not one of the property that gets inherited*/
}

/* pseudo element are not exist in html but it can also style in css */

/* element selector has higher priority than universal selector*/

/* PAGE SECTION */

body {
  color: #444; /*All text is #444 which dont have deleare color*/
  font-family: sans-serif;

  border-top: 10px solid #1098ad;
  /* The border property does NOT get inherited except all are inherited*/
  /* margin: 0; */
  /* margin is not inherited in body if we it inherited then use
      it in universal selector */

  position: relative; /* for the like button must be the child of body
   if it not then we write position: relative; in the parent of like button*/
}

.main-header {
  background-color: #f7f7f7;
  /* padding: 20px;
  padding-left: 40px;
  padding-right: 40px; */
  padding: 20px 40px;
  /* margin-bottom: 60px; */
  /* height: 80px; */
}

nav {
  font-size: 18px;
  /* text-align: center;  This is for anchor element in center */
}

.post-header {
  margin-bottom: 40px;
}

article {
  /* margin-bottom: 60px; */
}

aside {
  background-color: #f7f7f7;
  border-top: 5px solid #1098ad;
  border-bottom: 5px solid #1098ad;
  /* padding-top: 50px;
  padding-bottom: 50px;
  padding-left: 0px;
  padding-right: 0px; */
  padding: 50px 40px;

  /* border-left: 5px solid #1098ad;
  border-right: 5px solid #1098ad; */
}

/* SMALLER ELEMENTS */

h1,
h2,
h3 {
  color: #1098ad;
}

h1 {
  font-size: 26px;
  text-transform: uppercase;
  font-style: italic;
}

h2 {
  font-size: 40px;
  margin-bottom: 30px;
}

h3 {
  font-size: 30px;
  margin-bottom: 20px;
  margin-top: 40px;
}

h4 {
  font-size: 20px;
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 30px;
}

p {
  font-size: 22px;
  line-height: 1.5; /* means line height is 1.5 times font size*/
  margin-bottom: 15px;
}

ul,
ol {
  margin-left: 50px;
  margin-bottom: 20px;
}

li {
  font-size: 20px;
  margin-bottom: 10px;
  /* display: inline; */
}

li:last-child {
  margin-bottom: 0;
}

footer p {
  font-size: 16px;
}

/* article header p {
  font-style: italic;
} */
/* BOTH ARE SAME */

/* # for id & id is unique if we want to use multiple time then use class */

#author {
  font-style: italic;
  font-size: 18px;
}

#copyright {
  font-style: italic;
  font-size: 16px;
}

/* . for class & class is use multiple time */
.related-author {
  font-size: 18px;
  font-weight: bold;
}

/* mostly we use class if we want to use only once it is good for future*/

.related {
  list-style: none; /* This is for remove bullet point*/
  margin-left: 0;
}

aside {
  background-color: #f7f7f7;
  border-top: 5px solid #1098ad;
  border-bottom: 5px solid #1098ad;

  /* border-left: 5px solid #1098ad;
  border-right: 5px solid #1098ad; */
}

/* body {
  background-color: orange;
} */

/* .first-li {
  font-weight: bold;
} */

/* OR */

li:first-child {
  /* means css find first li element by it self*/
  font-weight: bold;
}

li:last-child {
  font-style: italic;
}

/* number,even,odd in () we can erite this */
/*
li:nth-child(even) {
  color: gray;
} 
*/

/* article header h2:first-child {
  color: red;
} */
/* here first child means next item here after article first is header
      and for header first(:first-child) is h2 */

/*Misconception this won't work */
article p:first-child {
  color: red;
}

/* article p:nth-child(odd) {
  color: orange;
} */

/* Styling links */

/* But a:link is not working */
a:link {
  color: #1098ad;
  text-decoration: none;
}

/* Mostly we dont use a:visited */

a:visited {
  /* color: #777; */
  color: #1098ad;
}

a:hover {
  color: orangered;
  font-weight: bold;
  text-decoration: underline /* wavy or dotted*/ orangered;
}

a:active {
  background-color: black;
  font-style: italic;
}

.post-img {
  width: 100%;
  height: auto;
  /* margin: 100px;*/
  /*If it is inline then it not create vertical place but it  
     not happen so images are inline but the behave like 
     inline-block  */
}

nav a:link {
  /* background-color: orangered;
  margin: 20px;
  padding: 20px;
  display: block; */
  margin-right: 30px;
  display: inline-block;
}

nav a:link:last-child {
  margin-right: 0;
}

button {
  font-size: 22px;
  padding: 20px;
  cursor: pointer;

  position: absolute;
  /* top: 50px;
  left: 50px; */
  bottom: 50px;
  right: 145px;
}
/* pseudo element are not exist in html but it can also style in css 
ex. ::first-letter */
/* by default pseudo element is inline element */
h1::first-letter {
  font-style: normal;
  margin-right: 5px;
}

h3 + p::first-line {
  /* color: red; */
}

h2 {
  /* background-color: orange; */
  position: relative;
}

h2::before {
  content: "TOP";
  background-color: #ffe70e;
  font-size: 16px;
  font-weight: bold;
  display: inline-block;
  padding: 5px 10px;
  position: absolute;
  color: #444;
  top: -10px;
  right: -25px;
}

a {
  /*link has higher priority than this */
  color: royalblue;
}

/* LVHA */
/*
            L-link
            V-visited
            H-hover
            A-active
*/

/* RESOLVING CONFLICTS */
#copyright {
  /* id has higher priority than class and element selector */
  color: black;
}

.copyright {
  color: orange;
}

.text {
  color: pink;
}

footer p {
  color: yellow; /* if we use this !important then its priority is higher
    */
}

/* nav a:link ,
nav p{
  font-size: 18px;
} */

/* CENTER OUR PAGE */
.container {
  width: 1200px;
  /* margin-left: auto;
  margin-right: auto; */
  margin: 0 auto;
  /* This is for like button */
}

/* FLOATS */
/*
.author-img {
  float: left;
  margin-bottom: 20px;
}

.author {
  float: left;
  margin-top: 10px;
  margin-left: 20px;
}

h1 {
  float: left;
}

nav {
  float: right;
}

// this need empty div 
.clear {
  clear: both;
}

 // clear fix hack 
.clearfix::after {
  /* two perticularity of after sudo element
  1. it only appear if we define something for content property
  2. by default they are inline element comment end here ////
     
  clear: both;
  content: "";
  display: block;
}

article {
  width: 825px;
  float: left;
}

aside {
  width: 300px;
  float: right;
}

footer {
  clear: both; // for footer going down
}

*/

/* Flexbox */

.main-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.author-box {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
}

.author {
  margin-bottom: 0;
  margin-left: 15px;
}

.related-post {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 30px;
}

.related-link:link {
  font-size: 17px;
  font-weight: bold;
  font-style: normal;
  margin-bottom: 5px;
  display: block;
}

.related-author {
  font-size: 14px;
  margin-bottom: 0;
  font-weight: normal;
  font-style: italic;
}

/* Flexbox layout */

/*
.row {
  display: flex;
  gap: 75px;
  margin-bottom: 60px;
  align-items: flex-start; /* this is for to remove stretch of aside 
}

article {
  flex: 1;
  margin-bottom: 0;
}

aside {
   /* flex-basis: 300px; We dont use width in flex 
  /*
        DEFAULTS :
        flex-grow: 0;
        flex-shrink: 1;
        flex-basis: auto;
   

  flex: 0 0 300px;
}

*/

/* CSS GRID LAYOUT */
.container {
  display: grid;
  grid-template-columns: 1fr 300px;
  column-gap: 75px;
  row-gap: 55px;
  align-items: center;
}

.main-header {
  /* grid-column: 1 / span 2; */
  grid-column: 1/-1;
}

article {
}

aside {
  height: 450px;
}

footer {
  grid-column: 1/-1;
}