.btn {
  background-color: #00A0D6;
  color: #FFF;
  transition: all 0.4s;
}

.btn:active,
.btn:focus,
.btn:hover {
  background-color: #007DA7;
  color: #E3E3E3;
}

[CSS] Transition_html

 

When creating a transition, technically all that needs to be specified is the duration. The rest will have defaults, like all, ease, and 0.

 

Transition Position:

.btn {
  transition: all 0.4s;
}

.top.content {
top: 0px;
  
}
.bottom.content {
top: 50px;
}
.btn:hover .top {
top: -50px;
}
.btn:hover .bottom {
top: 0px;
}
.btn .content {
transition: top 0.5s;
}

 

[CSS] Transition_ico_02

[CSS] Transition_css_03

 

[CSS] Transition_ico_04

 

<!DOCTYPE>
<html lang='en'>
  <head>
    <meta charset='utf-8'>
    <title>Cosplay Happenings</title>
    <link href='level1.css' rel='stylesheet' type='text/css'>
  </head>
  <body>
    <!-- Nav -->
    <nav class='nav'>
      <div class='cell'>
        <a class='nav-logo' href='/'>
          <div class='shing'>
            <img src='logo.png' alt='Sweet Lands' />
          </div>
        </a>
        <ul class='nav-menu'>
          <li><a href='#retweets'>Retweets</a></li>
          <li><a href='#pictures'>Pictures</a></li>
          <li><a href='#event'>Upcoming</a></li>
        </ul>
      </div>
    </nav>

    <!-- Header -->
    <header class='header'>
      <div class='cell well'>
        <h1 class='header-title'>Cosplay Happenings</h1>
        <p class='header-subtitle'>Welcome to our candy-coated community!</p>
      </div>
    </header>

    <!-- Most Retweeted -->
    <section class='retweets' id='retweets'>
      <div class='cell well'>
        <h2>Most Retweeted</h2>
        <div class='retweet group'>
          <img src='unicorn.jpg' alt='Unicorn' width='200' height='200' />
          <p>
            Sparkles the Unicorn saunters down the Lemony Brick Road and
            prances past the Soda Pop River! Her majestic horn points the way
            to the Frosting Fortress, as her glittery mane and tail sway in the
            bubblegum breeze.
          </p>
        </div>
        <div class='retweet group'>
          <img src='fairy.jpg' alt='Fairy' width='200' height='200' />
          <p>
            Who’s that there in the Candy Corn Fields? Why, it’s Sarsaparilla
            the Sherbet Sprite! He’s thoughtfully pondering which treat to
            partake of next. The Lollipop Forest is in the distance, in case he
            needs a place to rest his sweet head.
          </p>
        </div>
      </div>
    </section>

    <!-- Purchase -->
    <section class='pictures' id='pictures'>
      <div class='cell well'>
        <h2>Pictures</h2>
        <ul class='pictures-list group'>
          <li><img src='group-01.jpg' alt='Group' width='200' height='200' /></li>
          <li><img src='cupcake.jpg' alt='Cupcake' width='200' height='200' /></li>
          <li><img src='rainbow.jpg' alt='Rainbow' width='200' height='200' /></li>
          <li><img src='donut.jpg' alt='Donut' width='200' height='200' /></li>
          <li><img src='dog.jpg' alt='Dog' width='200' height='200' /></li>
          <li><img src='fairy.jpg' alt='Fairy' width='200' height='200' /></li>
          <li><img src='unicorn.jpg' alt='Unicorn' width='200' height='200' /></li>
          <li><img src='group-02.jpg' alt='Group' width='200' height='200' /></li>
        </ul>
      </div>
    </section>

    <!-- Contact -->
    <section class='event'  id='event'>
      <div class='cell well'>
        <h2>Upcoming Event</h2>
        <div class='event-content'>
          <img src='sweetlandia.png' alt='SweetLandia' width='200' />
          <h3>SweetLandia</h3>
          <p>
            Once upon a time, there was a magical place called Sweet Lands — a
            world we may now only travel to in our imaginations. But one
            weekend every year, when the sugar cane stalks bend toward the east
            and the cotton candy is at its swirliest, the Sweetlandia
            convention brings this wondrous world within reach! So join
            Sparkles, Pierre, and the rest of the gang for a meeting of the
            sweet-minded in sunny Omaha, Nebraska! It’s sure to be your
            sweetest adventure yet.
          </p>
          <div class='event-action'>
            <a href='#' class='btn buy-button'>
              <span class='top content'>Register Now!</span>
              <span class='bottom content'>Hurry, Limited Space!</span>
            </a>
          </div>
        </div>
      </div>
    </section>

    <!-- Register Modal -->
    <div class='modal-overlay'></div>
    <div class='modal'>
      <div class='modal-header'>
        <a class='modal-close' href='#' aria-label='Close'>&times;</a>
        <h3>Register</h3>
      </div>
      <div class='modal-content'>
        <form class='form' action=''>
          <fieldset class='form-field'>
            <!-- <label class='form-label' for='type'>CC Type</label> -->
            <select class='cs-select cs-skin-elastic' name='type'>
              <option value='visa'>Visa</option>
              <option value='mastercard'>MasterCard</option>
              <option value='american_express'>American Express</option>
            </select>
          </fieldset>
          <fieldset class='form-field'>
            <label class='form-label' for='number'>CC Number</label>
            <input class='form-input' type='text' id='number' />
          </fieldset>
          <fieldset class='form-field'>
            <label class='form-label' for='expiration'>CC Expiration</label>
            <input class='form-input' type='text' id='expiration' />
          </fieldset>
          <div class='form-submit'>
            <input class='btn' type='Submit' value='Submit' />
          </div>
        </form>
      </div>
    </div>
    <script src='application.min.js'></script>
  </body>
</html>
.btn {
  transition: all .4s;
}
.btn .content {
  transition: all .3s;
}
.top.content {
  top: 0px;
}
.bottom.content {
  top: 50px;
}
.btn:hover .top {
  top: -50px;
}
.btn:hover .bottom {
  top: 0px;
}

.modal,
.modal-overlay {
  visibility: hidden;
  opacity: 0;
  transition: all 0.5s;
}

.modal.active,
.modal-overlay.active {
  visibility: visible;
  opacity: 1;
}

[CSS] Transition_ico_05

 

 

--------------------

 

<!DOCTYPE>
<html lang='en'>
  <head>
    <meta charset='utf-8'>
    <title>Cosplay Happenings</title>
    <link href='level1.css' rel='stylesheet' type='text/css'>
  </head>
  <body>
    <!-- Nav -->
    <nav class='nav'>
      <div class='cell'>
        <a class='nav-logo' href='/'>
          <div class='shing'>
            <img src='logo.png' alt='Sweet Lands' />
          </div>
        </a>
        <ul class='nav-menu'>
          <li><a href='#retweets'>Retweets</a></li>
          <li><a href='#pictures'>Pictures</a></li>
          <li><a href='#event'>Upcoming</a></li>
        </ul>
      </div>
    </nav>

    <!-- Header -->
    <header class='header'>
      <div class='cell well'>
        <h1 class='header-title'>Cosplay Happenings</h1>
        <p class='header-subtitle'>Welcome to our candy-coated community!</p>
      </div>
    </header>

    <!-- Most Retweeted -->
    <section class='retweets' id='retweets'>
      <div class='cell well'>
        <h2>Most Retweeted</h2>
        <div class='retweet group'>
          <img src='unicorn.jpg' alt='Unicorn' width='200' height='200' />
          <p>
            Sparkles the Unicorn saunters down the Lemony Brick Road and
            prances past the Soda Pop River! Her majestic horn points the way
            to the Frosting Fortress, as her glittery mane and tail sway in the
            bubblegum breeze.
          </p>
        </div>
        <div class='retweet group'>
          <img src='fairy.jpg' alt='Fairy' width='200' height='200' />
          <p>
            Who’s that there in the Candy Corn Fields? Why, it’s Sarsaparilla
            the Sherbet Sprite! He’s thoughtfully pondering which treat to
            partake of next. The Lollipop Forest is in the distance, in case he
            needs a place to rest his sweet head.
          </p>
        </div>
      </div>
    </section>

    <!-- Purchase -->
    <section class='pictures' id='pictures'>
      <div class='cell well'>
        <h2>Pictures</h2>
        <ul class='pictures-list group'>
          <li><img src='group-01.jpg' alt='Group' width='200' height='200' /></li>
          <li><img src='cupcake.jpg' alt='Cupcake' width='200' height='200' /></li>
          <li><img src='rainbow.jpg' alt='Rainbow' width='200' height='200' /></li>
          <li><img src='donut.jpg' alt='Donut' width='200' height='200' /></li>
          <li><img src='dog.jpg' alt='Dog' width='200' height='200' /></li>
          <li><img src='fairy.jpg' alt='Fairy' width='200' height='200' /></li>
          <li><img src='unicorn.jpg' alt='Unicorn' width='200' height='200' /></li>
          <li><img src='group-02.jpg' alt='Group' width='200' height='200' /></li>
        </ul>
      </div>
    </section>

    <!-- Contact -->
    <section class='event'  id='event'>
      <div class='cell well'>
        <h2>Upcoming Event</h2>
        <div class='event-content'>
          <img src='sweetlandia.png' alt='SweetLandia' width='200' />
          <h3>SweetLandia</h3>
          <p>
            Once upon a time, there was a magical place called Sweet Lands — a
            world we may now only travel to in our imaginations. But one
            weekend every year, when the sugar cane stalks bend toward the east
            and the cotton candy is at its swirliest, the Sweetlandia
            convention brings this wondrous world within reach! So join
            Sparkles, Pierre, and the rest of the gang for a meeting of the
            sweet-minded in sunny Omaha, Nebraska! It’s sure to be your
            sweetest adventure yet.
          </p>
          <div class='event-action'>
            <a href='#' class='btn buy-button'>
              <span class='top content'>Register Now!</span>
              <span class='bottom content'>Hurry, Limited Space!</span>
            </a>
          </div>
        </div>
      </div>
    </section>

    <!-- Register Modal -->
    <div class='modal-overlay'></div>
    <div class='modal'>
      <div class='modal-header'>
        <a class='modal-close' href='#' aria-label='Close'>&times;</a>
        <h3>Register</h3>
      </div>
      <div class='modal-content'>
        <form class='form' action=''>
          <fieldset class='form-field'>
            <!-- <label class='form-label' for='type'>CC Type</label> -->
            <select class='cs-select cs-skin-elastic' name='type'>
              <option value='visa'>Visa</option>
              <option value='mastercard'>MasterCard</option>
              <option value='american_express'>American Express</option>
            </select>
          </fieldset>
          <fieldset class='form-field'>
            <label class='form-label' for='number'>CC Number</label>
            <input class='form-input' type='text' id='number' />
          </fieldset>
          <fieldset class='form-field'>
            <label class='form-label' for='expiration'>CC Expiration</label>
            <input class='form-input' type='text' id='expiration' />
          </fieldset>
          <div class='form-submit'>
            <input class='btn' type='Submit' value='Submit' />
          </div>
        </form>
      </div>
    </div>
    <script src='application.min.js'></script>
  </body>
</html>
.shing {
  position: relative;
}

.shing::after {
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  top: 0;
  content: '';

  box-shadow: inset 0 2px #FFF;
  background: -50px center no-repeat;
  background-image: linear-gradient(125deg,rgba(255,255,255,0) 30%,#FFF 30%,#FFF 50%,rgba(255,255,255,0) 50%);
  background-clip: padding-box;
  opacity: .3;
  transition: background-position 0.07s ease 0.4s;
}

.shing:hover:after {
  background-position: 100px center;
}