// Small tablets and large smartphones (landscape view)
$screen-sm-min: 576px;

// Small tablets (portrait view)
$screen-md-min: 768px;

// Tablets and small desktops
$screen-lg-min: 1024px;

// Large tablets and desktops
$screen-xl-min: 1200px;


// Small devices
@mixin sm {
    @media (min-width: #{$screen-sm-min}) {
        @content;
    }
 }
 
 // Medium devices
 @mixin md {
    @media (min-width: #{$screen-md-min}) {
        @content;
    }
 }
 
 // Large devices
 @mixin lg {
    @media (min-width: #{$screen-lg-min}) {
        @content;
    }
 }
 
 // Extra large devices
 @mixin xl {
    @media (min-width: #{$screen-xl-min}) {
        @content;
    }
 }

 // Custom devices
@mixin rwd($screen) {
    @media (min-width: $screen+'px') {
        @content;
    }
 }

 @mixin rmax($max) { 
    @media (max-width:$max+'px') {
        @content; 
    }
 }

 @mixin min_max($min, $max) { 
    @media (min-width: $min+'px') and (max-width:$max+'px') {
        @content; 
    }
 }

 @mixin only_responsive{
     @media (max-width:991px){
         @content;
     }
 }

 @mixin placeholder {
    &::-webkit-input-placeholder {@content}
    &:-moz-placeholder           {@content}
    &::-moz-placeholder          {@content}
    &:-ms-input-placeholder      {@content}  
  }

@mixin transform( $property ){
    -webkit-transform: $property;
      -ms-transform: $property;
          transform: $property;
}

@mixin transition( $property ){
    -webkit-transition: $property cubic-bezier(.785,.135,.15,.86);
      -ms-transition: $property cubic-bezier(.785,.135,.15,.86);
          transition: $property cubic-bezier(.785,.135,.15,.86);
}