//- arrays
- var btnTypes = {'border-o':'Border - Open','border':'Border','border-rev-o':'Border Reversed - Open','border-rev':'Border Reversed','fill-vert-o':'Fill Vertical - Open','fill-vert':'Fill Vertical','fill-horz-o':'Fill Horizontal - Open','fill-horz':'Fill Horizontal'}
- var btnColors = {'green':'Emerald','blue':'Peter River','purple':'Amethyst','navy':'Wet Asphalt','orange':'Carrot','red':'Alizarin'}

.main-container
  h1 Colorful CSS Buttons
  each name,type in btnTypes
    section
      h2= name
      each text,color in btnColors
        button(class="btn btn-"+color+" btn-"+type)= text
View Compiled
/* Reset */
@import url(//codepen.io/chrisdothtml/pen/ojLzJK.css);

// colors
$color-one: #2c3e50;
$btn-colors: (
  "green": "#2ecc71",
  "blue": "#3498db",
  "purple": "#9b59b6",
  "navy": "#34495e",
  "orange": "#e67e22",
  "red": "#e74c3c"
);

// extenders
.animate {
  transition: all 0.3s;
}

/* Main Styles */
.main-container {
  width: 100%;
  max-width: 750px;
  margin: 0 auto;
  padding: 0 15px;
}

h1 {
  line-height: 1;
  padding: 25px 0;
  border-bottom: 1px solid $color-one;
  font-size: 35px;
  color: $color-one;
  text-align: center;
}

section {
  padding: 60px 0 61px;
  text-align: center;
  position: relative;
  
  h2 {
    margin-bottom: 15px;
    font-weight: normal;
    font-size: 17px;
    color: #D2D2D2;
    text-align: center;
  }
  
  &:not(:last-child):after {
    content: '';
    width: 70%;
    height: 1px;
    border-bottom: 1px dashed $color-one;
    opacity: .5;
    position: absolute;
    bottom: -1px;
    left: 15%;
  }
}

.btn {
  display: inline-block;
  line-height: 35px;
  margin: 8px;
  padding: 0 15px;
  font-size: 15px;
  position: relative;
  opacity: .999;
  border-radius: 3px;
  @extend .animate;
}

.btn-border-o {
  background-color: transparent;
  border: 1px solid #d0d0d0;
  color: #B8B8B8;
  
  &:before,
  &:after {
    content: '';
    border-style: solid;
    position: absolute;
    z-index: 5;
    border-radius: 3px;
    box-sizing: content-box;
    @extend .animate;
  }
  
  &:before {
    width: 0;
    height: 100%;
    border-width: 1px 0 1px 0;
    top: -1px;
    left: 0;
    transition-delay: 0.05s;
  }
  
  &:after {
    width: 100%;
    height: 0;
    border-width: 0 1px 0 1px;
    top: 0;
    left: -1px;
  }
  
  &:hover {
    
    &:before {
      width: 100%;
    }
    
    &:after {
      height: 100%;
    }
  }
  
  @each $name,$hex in $btn-colors {
    
    &.btn-#{$name} {
      
      &:before,
      &:after {
        border-color: #{$hex};
      }
      
      &:hover {
        color: #{$hex};
      }
    }
  }
}

.btn-border {
  background-color: #e5e5e5;
  border: 1px solid #e5e5e5;
  color: #a6a6a6;
  
  &:before,
  &:after {
    content: '';
    border-style: solid;
    position: absolute;
    z-index: 5;
    border-radius: 3px;
    box-sizing: content-box;
    @extend .animate;
  }
  
  &:before {
    width: 0;
    height: 100%;
    border-width: 1px 0 1px 0;
    top: -1px;
    left: 0;
    transition-delay: 0.05s;
  }
  
  &:after {
    width: 100%;
    height: 0;
    border-width: 0 1px 0 1px;
    top: 0;
    left: -1px;
  }
  
  &:hover {
    background-color: transparent;
    
    &:before {
      width: 100%;
    }
    
    &:after {
      height: 100%;
    }
  }
  
  @each $name,$hex in $btn-colors {
    
    &.btn-#{$name} {
      
      &:before,
      &:after {
        border-color: #{$hex};
      }
      
      &:hover {
        color: #{$hex};
      }
    }
  }
}

.btn-border-rev-o {
  background-color: transparent;
  border: 1px solid #d0d0d0;
  color: #B8B8B8;
  
  &:before,
  &:after {
    content: '';
    border-style: solid;
    position: absolute;
    z-index: 5;
    border-radius: 3px;
    box-sizing: content-box;
    @extend .animate;
  }
  
  &:before {
    width: 0;
    height: 100%;
    border-width: 1px 0 1px 0;
    top: -1px;
    right: 0;
    transition-delay: 0.05s;
  }
  
  &:after {
    width: 100%;
    height: 0;
    border-width: 0 1px 0 1px;
    bottom: 0;
    left: -1px;
  }
  
  &:hover {
    
    &:before {
      width: 100%;
    }
    
    &:after {
      height: 100%;
    }
  }
  
  @each $name,$hex in $btn-colors {
    
    &.btn-#{$name} {
      
      &:before,
      &:after {
        border-color: #{$hex};
      }
      
      &:hover {
        color: #{$hex};
      }
    }
  }
}

.btn-border-rev {
  background-color: #e5e5e5;
  border: 1px solid #e5e5e5;
  color: #a6a6a6;
  
  &:before,
  &:after {
    content: '';
    border-style: solid;
    position: absolute;
    z-index: 5;
    border-radius: 3px;
    box-sizing: content-box;
    @extend .animate;
  }
  
  &:before {
    width: 0;
    height: 100%;
    border-width: 1px 0 1px 0;
    top: -1px;
    right: 0;
  }
  
  &:after {
    width: 100%;
    height: 0;
    border-width: 0 1px 0 1px;
    bottom: 0;
    left: -1px;
    transition-delay: 0.05s;
  }
  
  &:hover {
    background-color: transparent;
    
    &:before {
      width: 100%;
    }
    
    &:after {
      height: 100%;
    }
  }
  
  @each $name,$hex in $btn-colors {
    
    &.btn-#{$name} {
      
      &:before,
      &:after {
        border-color: #{$hex};
      }
      
      &:hover {
        color: #{$hex};
      }
    }
  }
}

.btn-fill-vert-o {
  background-color: transparent;
  border: 1px solid #d0d0d0;
  color: #B8B8B8;
  overflow: hidden;
  
  &:before,
  &:after {
    content: '';
    width: 100%;
    height: 0;
    opacity: 0;
    position: absolute;
    left: 0;
    z-index: -1;
    @extend .animate;
  }
  
  &:before {
    top: 50%;
  }
  
  &:after {
    bottom: 50%;
  }
  
  &:hover {
    color: #fff;
    
    &:before,
    &:after {
      height: 50%;
      opacity: 1;
    }
  }
  
  @each $name,$hex in $btn-colors {
    
    &.btn-#{$name} {
      
      &:before,
      &:after {
        background-color: #{$hex};
      }
      
      &:hover {
        border-color: #{$hex};
      }
    }
  }
}

.btn-fill-vert {
  background-color: #e5e5e5;
  border: 1px solid #e5e5e5;
  color: #a6a6a6;
  overflow: hidden;
  
  &:before,
  &:after {
    content: '';
    width: 100%;
    height: 0;
    opacity: 0;
    position: absolute;
    left: 0;
    z-index: -1;
    @extend .animate;
  }
  
  &:before {
    top: 50%;
  }
  
  &:after {
    bottom: 50%;
  }
  
  &:hover {
    color: #fff;
    
    &:before,
    &:after {
      height: 50%;
      opacity: 1;
    }
  }
  
  @each $name,$hex in $btn-colors {
    
    &.btn-#{$name} {
      
      &:before,
      &:after {
        background-color: #{$hex};
      }
      
      &:hover {
        border-color: #{$hex};
      }
    }
  }
}

.btn-fill-horz-o {
  background-color: transparent;
  border: 1px solid #d0d0d0;
  color: #B8B8B8;
  overflow: hidden;
  
  &:before,
  &:after {
    content: '';
    width: 0;
    height: 100%;
    opacity: 0;
    position: absolute;
    top: 0;
    z-index: -1;
    @extend .animate;
  }
  
  &:before {
    left: 50%;
  }
  
  &:after {
    right: 50%;
  }
  
  &:hover {
    color: #fff;
    
    &:before,
    &:after {
      width: 50%;
      opacity: 1;
    }
  }
  
  @each $name,$hex in $btn-colors {
    
    &.btn-#{$name} {
      
      &:before,
      &:after {
        background-color: #{$hex};
      }
      
      &:hover {
        border-color: #{$hex};
      }
    }
  }
}

.btn-fill-horz {
  background-color: #e5e5e5;
  border: 1px solid #e5e5e5;
  color: #a6a6a6;
  overflow: hidden;
  
  &:before,
  &:after {
    content: '';
    width: 0;
    height: 100%;
    opacity: 0;
    position: absolute;
    top: 0;
    z-index: -1;
    @extend .animate;
  }
  
  &:before {
    left: 50%;
  }
  
  &:after {
    right: 50%;
  }
  
  &:hover {
    color: #fff;
    
    &:before,
    &:after {
      width: 50%;
      opacity: 1;
    }
  }
  
  @each $name,$hex in $btn-colors {
    
    &.btn-#{$name} {
      
      &:before,
      &:after {
        background-color: #{$hex};
      }
      
      &:hover {
        border-color: #{$hex};
      }
    }
  }
}
View Compiled
// Not a damn thing

External CSS

  1. //maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css

External JavaScript

  1. //cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js