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CSS3 Responsive Navigation Menu

A Pen By Jeremy Cloutier

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HTML

            
              %header.masthead
  .brand-container
    %a{:href => "#"}
      %span.brand-initials Es
      %span.brand-name Elemental Shift
  %nav
    .nav-container
      %div
        %input#slider1{:name => "slider1", :type => "checkbox"}/
        %label.slide.has-child{:for => "slider1"}
          %span.element Bg
          %span.name Blog
        .child-menu
          %a{:href => "#"} Recent
          %a{:href => "#"} Archives
          %a{:href => "#"} Categories
      %div
        %a.slide{:href => "#"}
          %span.element Po
          %span.name Portfolio
      %div
        %input#slider2{:name => "slider2", :type => "checkbox"}/
        %label.slide.has-child{:for => "slider2"}
          %span.element Xp
          %span.name Laboratory
        .child-menu
          %a{:href => "#"} PHP
          %a{:href => "#"} Javascript
          %a{:href => "#"} Css
          %a{:href => "#"} Ruby
          %a{:href => "#"} Python
          %a{:href => "#"} Design
      %div
        %a.slide{:href => "#"}
          %span.element Ab
          %span.name About
      %div
        %a.slide{:href => "#"}
          %span.element C
          %span.name Contact
  .social-container
    %span
      %a.social-roll.github{:href => "#"}
    %span
      %a.social-roll.twitter{:href => "#"}
    %span
      %a.social-roll.linkedin{:href => "#"}
    %span
      %a.social-roll.rss{:href => "#"}
!

CSS

            
              @import compass

@function emCalc($pxWidth)
    @return $pxWidth / 16 * 1em

@mixin breakpoint($break)
    @if $break == small
        @media only screen and (min-width: emCalc(769))
            @content
a
    text-decoration: none

$colors: #8cc63f, #ef3724, #ffa61a, #1ab1ff, #FC1DCF
nav
    display: table
    position: relative
    table-layout: fixed
    width: 100%

    // hide and reset form elemetns for dropdowns
    input
        display: none
    label
        margin: 0

    div.nav-container
        display: table-row
        & > div
            display: table-cell

        // loop through colors list and generate rules on a
        // per color basis
        @for $i from 1 through length($colors)
            & > div:nth-of-type(#{length($colors)}n+#{$i})
                // apply coloring to menu elements and nested links
                & .slide, & a
                    border-color: nth($colors, $i)
                    &:hover
                        color: darken( nth($colors, $i), 20)
                    // set background color for child menus
                    & ~ .child-menu
                        background-color: lighten( nth($colors, $i), 10)
                // set colors for color for active elements
                & input:checked, .slide.active
                    & ~ label
                        color:  nth($colors, $i)


    // set base transition spees for all a and label elements in the menu
    a, label
        // all a elements
        +transition-property(color)
        +transition-duration(.2s)
        +transition-timing-function(ease-in)

    // base styling for the sliding elements
    .slide
        padding: 10px 10px
        font-size: emCalc(16)
        display: block
        color: #393939
        border-top: 4px solid transparent
        position: relative
        // a.slide elements change border width on mouse out
        +transition-property(border-width, color)
        +transition-duration(.1s, .2s)
        +transition-timing-function(ease-in)
        +transition-delay(.2s, 0s)
        .element
            font-size: emCalc(20)
            font-weight: 600
            font-style: normal
            display: block
            line-height: 1
        .name
            font-size: emCalc(11)
            position: relative

    .has-child .name:after
        content: ""
        width: 10px
        height: 4px
        background-image: url('http://www.elemental-shift.com/remote-assets/down-arrow.svg')
        display: block
        position: absolute
        bottom: -9px
        left: 1px
        background-repeat: no-repeat
        +transition-property(transform)
        +transition-duration(.5s)
        +transition-timing-function(ease-in)
        +transform-origin(50%, 50%)
        
        
    // child menu styling
    .child-menu
        display: block
        position: absolute
        max-height: 0
        overflow: hidden
        background-color: #393939
        width: 100%
        top: 65px
        left: 0
        z-index: 5000
        // mouse out timing functions
        +transition-property(max-height)
        +transition-duration(.5s)
        +transition-timing-function(ease-in)
        a
            color: white
            display: inline-block
            padding: 15px 30px 15px 10px
            font-size: emCalc(15)

    // hold open child menu when input is checked
    input:checked ~ .child-menu
        max-height: 100px
        // mouse in time functions
        +transition-property(max-height)
        +transition-duration(.5s)
        +transition-timing-function(ease-in)
    input:checked ~ .has-child .name:after
        +rotateX(180deg)

+breakpoint(small)
    nav
        display: block
        table-layout: auto

        div.nav-container
            display: block
            & > div
                display: block
                margin: 5px 0
                &:hover .slide
                    border-left-width: 55px
                    // a.slide transition delay on hover
                    +transition-delay(0)

        .slide
            display: block
            width: auto
            border-left: solid 4px #393939
            border-top: none
            .element
                line-height: 1

        .child-menu
            display: block
            position: relative
            top: 0
            background-color: transparent !important
            margin-left: 55px
            width: auto
            max-height: 0px
            overflow: hidden
            border-top: none
            a
                color: #393939
                display: block
                padding: 3px 0 3px 10px
                font-size: emCalc(13)

        input:checked ~ div.child-menu
            max-height: 120px

        input:checked ~ .slide
            border-width: 55px

.masthead
    font-family: "Open Sans", sans-serif
    .brand-container
        padding: 10px
        background-color: #393939
        a
            color: white
            display: inline-block
            +transition-property(all)
            +transition-duration(.2s)
            +transition-timing-function(ease-in)
            &:hover
                color: #8cc63f
    .brand-initials
        font-size: emCalc(49)
        font-weight: 700
        font-style: normal
        display: block
        line-height: 42px
    .brand-name
        font-size: emCalc(13)
        text-indent: 3px
        display: block

+breakpoint(small)
    .masthead
        position: absolute
        top: 0
        left: 0
        width: 150px
        .brand-container
            padding: 10px 0 50px 10px
            a
                display: block
!

JS

            
              # Pure Css responsive menu with dropdowns and
# transition effects
!
999px
🕑 One or more of the npm packages you are using needs to be built. You're the first person to ever need it! We're building it right now and your preview will start updating again when it's ready.
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