* {
  padding: 0;
  margin: 0;
  border-box: box-sizing;
}

body {
  background-color: #ffffff;
}

#navbar {
  top: 0;
  height: 5em;
  width: 100%;
  position: fixed;
  display: flex;
  flex-direction: column;
  overflow-y: scroll;
}

#navbar header {
  text-align: center;
  font-size: 1.5em;
  line-height: 1.8em;
  background-color: #808000;
  color: #f0f8ff;
}

#navbar a {
  padding: 0.3em 0em;
  text-align: center;
  text-decoration: none;
  font-size: 1.1em;
  border: solid;
  color: #808000;
  background-color: #f0f8ff;
}

#navbar a:hover {
  color: white;
  transition: 0.5s;
  font-size: 23px;
  background-color: #808000;
}

#content {
  margin: 5em 0;
  padding: 1em;
  font-size: 1em;
}

header {
  font-size: 1.6em;
}

#flex-box {
  display: flex;
  flex-direction: row;
  align-content: center;
  background-color: #6b8e23;
  width: 15em;
  padding: 1em;
  margin: 1em;
}

#box-1 {
  padding: 2em;
  margin: 0.4em;
  border: solid 2px black;
}

#box-2 {
  padding: 2em;
  margin: 0.4em;
  border: solid 3px black;
}

/*FLEXBOXES END*/
/*COLUMNS AND ROWS START*/
.columns {
  display: flex;
  flex-direction: column;
  margin-top: 1.5em;
  margin-right: 70em;
  background-color: #6b8e23;
  padding: 1em 5em;
  align-items: center;
}

#one-col {
  padding: 2em;
  border: solid;
  margin: 1em;
}

#two-col {
  padding: 2em;
  border: solid;
  margin: 1em;
}

.rows {
  display: flex;
  flex-direction: row;
  margin-right: 70em;
  margin-top: 3em;
  margin-bottom: 2em;
  background-color: #6b8e23;
  justify-content: center;
  padding: 3.5em;
  width: 9em;
  height: 6em;
}

#one-row {
  padding: 1.6em;
  border: solid;
  margin: 0.6em;
}

#two-row {
  padding: 1.6em;
  border: solid;
  margin: 0.6em;
}

/*COLUMNS AND ROWS END*/
#Flex_Properties p {
  padding: 1em 0;
}

table,
th,
td {
  border: 1px solid black;
}

table td {
  padding: 0.8em;
  line-height: 1.4em;
  font-size: 1em;
  background-color: #f5fffa;
}

table th {
  padding: 1em;
  background-color: #dcdcdc;
}

section header {
  font-size: 2em;
}

p {
  font-size: 1.2em;
  line-height: 1.5em;
  padding-top: 1em;
}

section {
  margin-bottom: 3em;
  background-color: #ffffff;
  padding: 2em;
}

li {
  font-size: 18px;
  padding: .3em;
}

th {
  font-size: 17px;
  text-align: center;
}

.css {
  font-size: 15px;
}

#Justify_vs_Align h2 {
  margin-top: 1em;
  font-size: 1.4em;
}

#Resources a {
  text-decoration: none;
}

#Resources a:hover {
  color: #556b2f;
}

footer {
  float: center;
  padding-bottom: 25px;
}

@media screen and (min-width: 630px) {
  #navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 15em;
    min-width: 10em;
    height: 100%;
    border: 0;
  }

  #navbar header {
    text-align: center;
    font-size: 2.4em;
    line-height: 1.5em;
    background-color: #808000;
    color: #f0f8ff;
  }

  #navbar a {
    padding: 1.5em;
    margin-bottom: 0.15em;
    text-align: center;
    text-decoration: none;
    font-size: 1.2em;
    color: #808000;
    background-color: #f0f8ff;
    border-top: solid 1px black;
    cursor: pointer;
  }

  #navbar a:hover {
    color: white;
    transition: 0.5s;
    font-size: 1.3em;
    background-color: #808000;
  }

  /*NAVBAR ENDS*/
  #main-doc {
    background-color: #f0f8ff;
    margin-left: 15em;
  }

  section {
    margin-bottom: 5em;
  }

  #flex-box {
    width: 15em;
  }

  #content {
    margin: 0;
  }

  table td {
    font-size: 1.1em;
  }

  table th {
    font-size: 1.3em;
  }
}
@media screen and (min-width: 780px) {
  #navbar {
    width: 15em;
    min-width: 10em;
  }
}

.left {
  float: left;
  width: auto;
  margin-right: 10px;
}

.right
{
  float: right;
  width: auto;
  margin-left: 10px;
}

.center
{
  display: block;
  text-align: center;
  margin: 20px auto;
}