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<body>
<aside>
<header><span class="ico">
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<nav>
<ul class="main-menu">
<li><a href="#"><span class="ico">
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</span><span>Overview <button>+</button></span></a></li>
<li><a href="#"><span class="ico">
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<path fill="#231F20" d="M52.336,31.847c-0.395-10.813-9.096-19.515-19.91-19.909V3.181h-1.523v8.757
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</svg>
</span><span>Location <button>+</button></span>
</a></li>
<li><a href="#"><span class="ico">
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<g>
<g>
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<g>
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</span><span>Live View <button>+</button></span></a></li>
<li><a href="#"><span class="ico">
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<g>
<g>
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</span><span>Traffic <button>+</button></span></a></li>
<li><a href="#"><span class="ico ico-heart">
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</span><span>Demography <button>+</button></span></a></li>
</ul>
</nav>
</aside>
</body>
@import url(https://fonts.googleapis.com/css?family=PT+Sans:400,700)
$dark: #16191f
$light: #383e49
$lighter: #4c515d
$border: #232831
$font: #cfd2d9
body
background: $dark
padding: 50px 0
font-size: 13px
font-weight: 400
font-family: Tahoma "PT Sans" sans-serif
aside
width: 50px
min-height: 400px
background: $light
border-radius: 5px
text-align: center
overflow: hidden
transition: all .2s ease-in
margin: 0 auto
&:hover
width: 200px
transition: all .3s ease-in
header
height: 60px
background: $lighter
text-align: center
border-bottom: 1px solid $border
box-shadow: 0 1px 1px 0 rgba(053, 059, 069, 1)
.ico
display: inline-block
margin-top: 15px
nav
ul
list-style: none
margin: 0
padding: 0
li
height: 50px
display: block
border-bottom: 1px solid $border
line-height: 50px
position: relative
a
width: 200px
color: #fff
text-decoration: none
display: block
position: relative
color: $font
border-left: 2px solid transparent
transition: all .2s ease-in
button
width: 20px
height: 20px
background: none
border: none
font-weight: bold
font-size: 15px
color: #fff568
transform: rotate(0deg)
transition: all .3s ease-in
position: absolute
left: 95px
top: 15px
outline: none
text-align: center
line-height: 20px
padding: 0
&:hover
transform: rotate(135deg)
transition: all .2s ease-in
color: #cfd2d9
&:after
content: " "
display: block
clear: both
visibility: hidden
line-height: 0
height: 0
&:hover
background: $lighter
color: #fff
border-left: 2px solid #cfd2d9
transition: all .2s ease-in
.ico
svg
path
stroke: #fff
span
display: block
float: left
white-space: nowrap
.ico
width: 50px
height: 50px
border-right: 1px solid $border
text-align: center
position: relative
svg
height: 20px
width: 1000px
position: absolute
top: 50%
left: 50%
margin-top: -10px
margin-left: -12px
path
stroke: #cfd2d9
stroke-width: 3
fill: #cfd2d9
rect
@extend path
+ span
position: absolute
left: 70px
Also see: Tab Triggers