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HTML

            
              <h1>Bunch-o-Buttons</h1>
<div class="grid">
  <div class="grid-item">
    <div class="presentation-block">
      <div class="title">Default</div>
      <div class="row">
        <button class="btn btn-default">Normal</button>
        <button class="btn btn-default focus">Hover</button>
        <button class="btn btn-default active">Active</button>
        <button class="btn btn-default" disabled>Disabled</button>        
      </div>
      <div class="title">Default - Flat</div>
      <div class="row">
        <button class="btn btn-default btn-flat">Normal</button>
        <button class="btn btn-default btn-flat focus">Hover</button>
        <button class="btn btn-default btn-flat active">Active</button>
        <button class="btn btn-default btn-flat" disabled>Disabled</button>     
      </div>
    </div>
  </div>
  <div class="grid-item">
    <div class="presentation-block">
      <div class="title">Primary</div>
      <div class="row">
        <button class="btn btn-primary">Normal</button>
        <button class="btn btn-primary focus">Hover</button>
        <button class="btn btn-primary active">Active</button>
        <button class="btn btn-primary" disabled>Disabled</button>
      </div>
      <div class="title">Primary - Flat</div>
      <div class="row">
        <button class="btn btn-primary btn-flat">Normal</button>
        <button class="btn btn-primary btn-flat focus">Hover</button>
        <button class="btn btn-primary btn-flat active">Active</button>
        <button class="btn btn-primary btn-flat" disabled>Disabled</button>       
      </div>
    </div>
  </div>
  <div class="grid-item">
    <div class="presentation-block">
      <div class="title">Success</div>
      <div class="row">
        <button class="btn btn-success">Normal</button>
        <button class="btn btn-success focus">Hover</button>
        <button class="btn btn-success active">Active</button>
        <button class="btn btn-success" disabled>Disabled</button>
      </div>
      <div class="title">Success - Flat</div>
      <div class="row">
        <button class="btn btn-success btn-flat">Normal</button>
        <button class="btn btn-success btn-flat focus">Hover</button>
        <button class="btn btn-success btn-flat active">Active</button>
        <button class="btn btn-success btn-flat" disabled>Disabled</button>
      </div>
    </div>
  </div>
</div>

<div class="grid">
  <div class="grid-item">
    <div class="presentation-block">
      <div class="title">Info</div>
      <div class="row">
        <button class="btn btn-info">Normal</button>
        <button class="btn btn-info focus">Hover</button>
        <button class="btn btn-info active">Active</button>
        <button class="btn btn-info" disabled>Disabled</button>
      </div>
      <div class="title">Info - Flat</div>
      <div class="row">
        <button class="btn btn-info btn-flat">Normal</button>
        <button class="btn btn-info btn-flat focus">Hover</button>
        <button class="btn btn-info btn-flat active">Active</button>
        <button class="btn btn-info btn-flat" disabled>Disabled</button>
      </div>
    </div>
  </div>
  
  <div class="grid-item">
    <div class="presentation-block">
      <div class="title">Warning</div>
      <div class="row">
        <button class="btn btn-warning">Normal</button>
        <button class="btn btn-warning focus">Hover</button>
        <button class="btn btn-warning active">Active</button>
        <button class="btn btn-warning" disabled>Disabled</button>
      </div>
      <div class="title">Warning - Flat</div>
      <div class="row">
        <button class="btn btn-warning btn-flat">Normal</button>
        <button class="btn btn-warning btn-flat focus">Hover</button>
        <button class="btn btn-warning btn-flat active">Active</button>
        <button class="btn btn-warning btn-flat" disabled>Disabled</button>
      </div>
    </div>    
  </div>
  
  <div class="grid-item">
    <div class="presentation-block">
      <div class="title">Danger</div>
      <div class="row">
        <button class="btn btn-danger">Normal</button>
        <button class="btn btn-danger focus">Hover</button>
        <button class="btn btn-danger active">Active</button>
        <button class="btn btn-danger" disabled>Disabled</button>
      </div>
      <div class="title">Danger - Flat</div>
      <div class="row">
        <button class="btn btn-danger btn-flat">Normal</button>
        <button class="btn btn-danger btn-flat focus">Hover</button>
        <button class="btn btn-danger btn-flat active">Active</button>
        <button class="btn btn-danger btn-flat" disabled>Disabled</button>
      </div>
    </div>    
  </div>
</div>

<div class="grid">
  <div class="grid-item">&nbsp;</div>
  <div class="grid-item">
    <div class="presentation-block">
      <div class="title">Size Variants</div>
      <div class="row">
        <button class="btn btn-default btn-xs">Extra Small</button>
        <button class="btn btn-default btn-sm">Small</button>
        <button class="btn btn-default">Normal</button>
        <button class="btn btn-default btn-lg">Large</button>
      </div>
      <div class="title">Size Variants - Flat</div>
      <div class="row">
        <button class="btn btn-default btn-flat btn-xs">Extra Small</button>
        <button class="btn btn-default btn-flat btn-sm">Small</button>
        <button class="btn btn-default btn-flat">Normal</button>
        <button class="btn btn-default btn-flat btn-lg">Large</button>
      </div>
    </div>
  </div>
  <div class="grid-item">&nbsp;</div>
</div>
            
          
!

CSS

            
              *,
*:before,
*:after {
  box-sizing: border-box;
}

html {
  font-size: 62.5%;
}

body {
  font-family: 'Roboto', sans-serif;
  font-size: 1.6rem;
  padding: 20px 80px;
  background-color: #eee;
}

h1 {
  text-align: center;
  font-size: 4rem;
  font-weight: 100;
  margin-top: 0;
  margin-bottom: 20px;
  color: #aaa;
}

.grid {
  margin-left: -10px;
  margin-right: -10px;
  
  &:before,
  &:after {
    content: " ";
    display: table;
  }
  
  &:after {
    clear: both;
  }
}

.grid-item {
  width: percentage(1/3);
  float: left;
  padding-left: 10px;
  padding-right: 10px;
}

.presentation-block {
  text-align: center;
  padding: 10px;
  border-radius: 3px;
  margin-bottom: 10px;
  background-color: #fff;
  box-shadow: 0 1px 2px rgba(0,0,0,.075);
  
  .title {
    display: block;
    text-transform: uppercase;
    font-size: 1.4rem;
    color: #aaa;
    margin-bottom: 10px;
  }
  
  .row {
    margin-bottom: 10px;
    
    &:last-child {
      margin-bottom: 0;
    }
  }
}

.btn {
  display: inline-block;
  margin-bottom: 0;
  text-align: center;
  text-transform: uppercase;
  vertical-align: middle;
  cursor: pointer;
  background-image: none;
  whitespace: nowrap;
  padding: 6px 12px;
  font-size: 1.4rem;
  border-radius: 3px;
  border: 1px solid transparent;
  text-decoration: none;
  user-select: none;
  
  &,
  &:active,
  &.active {
    &:focus {
      outline: thin dotted;
      outline: 5px auto -webkit-focus-ring-color;
      outline-offset: -2px;
    }
  }
  
  &:hover,
  &:focus,
  &.focus {
    text-decoration: none;
    color: #fff;
  }
  
  &:active,
  &.active {
    outline: 0;
    background-image: none;
  }
  
  &.disabled,
  &[disabled],
  fieldset[disabled] & {
    cursor: not-allowed;
    pointer-events: none;
    box-shadow: none;
  }
  
  &.btn-xs {
    padding: 3px 6px;
    font-size: 1.2rem;
  }
  
  &.btn-sm {
    padding: 4px 8px;
    font-size: 1.3rem;
  }
  
  &.btn-lg {
    padding: 8px 16px;
    font-size: 1.6rem;
  }
}

@mixin btn-variant($border, $from, $to, $gloss, $color, $hover-from, $active-border) {
  color: $color;
  border-color: $border;
  background: linear-gradient(to bottom, $from 0%, $to 100%);
  box-shadow: inset 0 1px $gloss, 0 1px 2px rgba(0,0,0,.2);
  
  &:hover,
  &:focus,
  &.focus {
    border-color: $to;
    background: linear-gradient(to bottom, $hover-from 0%, $from 100%);
    box-shadow: inset 0 1px $color, 0 2px 3px rgba(0,0,0,.2);
  }
  
  &:active,
  &.active {
    border-color: $active-border;
    color: $gloss;
    background: linear-gradient(to bottom, $to 0%, $border 100%);
    box-shadow: inset 0 2px 2px $active-border;
  }
  
  &.disabled,
  &[disabled],
  fieldset[disabled] & {
    background: $hover-from;
    border-color: $from;
  }
}

@mixin btn-flat($active, $hover, $normal, $active-color, $color, $disabled) {
  color: $color;
  border-color: transparent;
  background: $normal;
  box-shadow: none;
  
  &:hover,
  &:focus,
  &.focus {
    border-color: transparent;
    color: #fff;
    background: $hover;
    box-shadow: none;
  }
  
  &:active,
  &.active {
    border-color: $active;
    color: $active-color;
    background: $active;
    box-shadow: none;
  }
  
  &.disabled,
  &[disabled],
  fieldset[disabled] & {
    background: $disabled;
    border-color: $disabled;
  }
}

.btn-default {
  @include btn-variant(#546e7a, #90a4ae, #78909c, #cfd8dc, #eceff1, #b0bec5, #455a64);
  
  &.btn-flat {
    @include btn-flat(#546e7a, #90a4ae, #78909c, #cfd8dc, #eceff1, #b0bec5);
  }
}

.btn-primary {
  @include btn-variant(#1e88e5, #64b5f6, #42a5f5, #bbdefb, #e3f2fd, #90caf9, #1976d2);
  
  &.btn-flat {
    @include btn-flat(#1e88e5, #64b5f6, #42a5f5, #bbdefb, #e3f2fd, #90caf9);
  }
}

.btn-success {
  @include btn-variant(#43A047, #81C784, #66BB6A, #C8E6C9, #E8F5E9, #A5D6A7, #388E3C);
  
  &.btn-flat {
    @include btn-flat(#43A047, #81C784, #66BB6A, #C8E6C9, #E8F5E9, #A5D6A7);
  }
}

.btn-info {
  @include btn-variant(#00ACC1, #4DD0E1, #26C6DA, #B2EBF2, #E0F7FA, #80DEEA, #0097A7);
  
  &.btn-flat {
    @include btn-flat(#00ACC1, #4DD0E1, #26C6DA, #B2EBF2, #E0F7FA, #80DEEA);
  }
}

.btn-warning {
  @include btn-variant(#FB8C00, #FFB74D, #FFA726, #FFE0B2, #FFF3E0, #FFCC80, #F57C00);
  
  &.btn-flat {
    @include btn-flat(#FB8C00, #FFB74D, #FFA726, #FFE0B2, #FFF3E0, #FFCC80);
  }
}

.btn-danger {
  @include btn-variant(#F4511E, #FF8A65, #FF7043, #FFCCBC, #FBE9E7, #FFAB91, #E64A19);
  
  &.btn-flat {
    @include btn-flat(#F4511E, #FF8A65, #FF7043, #FFCCBC, #FBE9E7, #FFAB91);
  }
}
            
          
!

JS

            
              
            
          
!
999px

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