<div class="wrap">

  <h2>Normal Boyut Botunlar</h2>
  <a class="btn btn-medium btn-blue" href="#">Download</a>
  <a class="btn btn-medium btn-green" href="#">Sign Up</a>
  <a class="btn btn-medium btn-orange" href="#">Sign In</a>
  <a class="btn btn-medium btn-red" href="#">Read More</a>
  <a class="btn btn-medium btn-gray" href="#">Forgot Password</a>
  
  <hr />
  
  <h2>Küçük Boyut Botunlar</h2>
  <a class="btn btn-small btn-blue" href="#">Download</a>
  <a class="btn btn-small btn-green" href="#">Sign Up</a>
  <a class="btn btn-small btn-orange" href="#">Sign In</a>
  <a class="btn btn-small btn-red" href="#">Read More</a>
  <a class="btn btn-small btn-gray" href="#">Forgot Password</a>
  
   <hr />
  
  <h2>Büyük Boyut Botunlar</h2>
  <a class="btn btn-large btn-blue" href="#">Download</a>
  <a class="btn btn-large btn-green" href="#">Sign Up</a>
  <a class="btn btn-large btn-orange" href="#">Sign In</a>
  <a class="btn btn-large btn-red" href="#">Read More</a>
  <a class="btn btn-large btn-gray" href="#">Forgot Password</a>
  
  <hr />
</div>

@import url(https://fonts.googleapis.com/css?family=Raleway);

*, *:before, *:after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.wrap {
  width: 100%;
  max-width: 900px;
  margin: 4em auto;
  font-family: Raleway, Arial, sans-serif;
  padding: 1em 2em;
}

hr {
    display: block;
    height: 1px;
    border: 0;
    border-top: 2px solid #eee;
    margin: 2em 0;
    padding: 0;
}

h1, h2 {
  margin-bottom: 1em;
  border-bottom: 2px solid #eee;
  line-height: 1.5;
}

h1 > small{
  color: #666;
}

h1 > small > a,
p > a{
  color: #3CB371;
  text-decoration: none;
}
h1 > small > a:hover,
p > a:hover{
  text-decoration: underline;
}

/* Buton Stilleri */
input::-moz-focus-inner,
button::-moz-focus-inner {
    border: 0;
    padding: 0;
}

input[type="submit"].btn,
button.btn {
    cursor: pointer;
}

a.btn,.btn {
  margin-right: 1em; /* Kullanırken kaldırılacak */
  margin-bottom: 1em; 
    display: inline-block;
    outline: none;
    *zoom: 1;
    text-align: center;
    text-decoration: none;
    font-family: inherit;
    font-weight: 300;
    letter-spacing: 1px;
    vertical-align: middle;
    border: 1px solid;
    transition: all 0.2s ease;
    box-sizing: border-box;
    text-shadow: 0 1px 0 rgba(0,0,0,0.01);
}
}
/* Boyutlar */
.btn-small {
    font-size: 0.8125em;
    padding: 0.4125em 1.25em;
}
.btn-medium {
    font-size: 0.9375em;
    padding: 0.5375em 1.375em;
}
.btn-large {
    font-size: 1.0625em;
    padding: 0.5625em 1.5em;
}

/* Renkler */
.btn-green {
    color: #3CB371;
    border-color: #3CB371;
}
.btn-green:hover {
  background: #3CB371;
  color: #fff;
  border-color: #3CB371;        
}

.btn-blue {
    color: #4682B4;
    border-color: #4682B4;
}
.btn-blue:hover {
  background: #4682B4;
  color: #fff;
  border-color: #4682B4;        
}

.btn-orange {
    color: #FF8C00;
    border-color: #FF8C00;
}
.btn-orange:hover {
  background: #FF8C00;
  color: #fff;
  border-color: #FF8C00;        
}

.btn-red {
    color: #B22222;
    border-color: #B22222;
}
.btn-red:hover {
  background: #B22222;
  color: #fff;
  border-color: #B22222;    
}

.btn-gray {
    color: #808080;
    border-color: #808080;
}
.btn-gray:hover {
  background: #808080;
  color: #fff;
  border-color: #808080;    
}