style.css

/* <copyright>
Copyright (c) 2012, Motorola Mobility LLC.
All Rights Reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice,
  this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.

* Neither the name of Motorola Mobility LLC nor the names of its
  contributors may be used to endorse or promote products derived from this
  software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
</copyright> */


/* Base ----------------------------- */

html {
    background-color: hsl(0,0%,85%);
    height: 100%;
}

body {
    margin: 0;
    width: 100%;
    height: 100%;
    display: -webkit-box;
    -webkit-box-align: center;
    -webkit-box-pack: center;
    
    display: -moz-box;
    -moz-box-align: center;
    -moz-box-pack: center;
}


/* Converter ----------------------------- */

.converter {
   padding: 10px;
   text-shadow: #fff 0 1px 0;
   border-radius: 8px;
   background-color: hsl(0,0%,95%);
   box-shadow: 	inset 0px 1px 2px 1px hsla(0,0%,100%,1), 0px 2px 5px hsla(0,0%,0%,.1);
}

.converter .title {
   margin: 0 0 5px 0;
   text-align: center;
   font: 24px/40px "Lucida Grande", "Trebuchet MS", Verdana, sans-serif;
}

.converter .controls {
    display: -webkit-box;
    -webkit-box-align: center;
    -webkit-box-pack: center;
    display: -moz-box;
    -moz-box-align: center;
    -moz-box-pack: center;    
    padding: 20px;
    text-shadow: #fff 0 1px 0;
    border-radius: 6px;
    background-color: hsl(0,0%,98%);
    box-shadow: 	inset 0px 1px 2px 1px hsla(0,0%,100%,1), 0px 2px 5px hsla(0,0%,0%,.1);
}


/* Number ----------------------------- */

.converter label {
    display: block;
    text-align: right;
    margin-bottom: 15px;
    color: hsl(0,0%,50%);
    font: 18px/1.4em "Lucida Grande", "Trebuchet MS", Verdana, sans-serif;
}
.converter label:last-child {
    margin-bottom: 0px;
}

.converter input[type="number"] {
    display: inline-block;
    width: 163px;
    box-sizing: border-box;
    font: inherit;
    text-shadow: hsl(0,0%,95%) 0 1px 0;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid hsl(0,0%,70%);
    background-color: hsl(0,0%,90%);
    box-shadow: inset 0px 1px 2px hsla(0,0%,0%,.2), 0 2px 0 hsla(0,0%,100%,1);
}
.converter input[type="number"]:focus {
    outline: none;

    border: 1px solid hsl(200,100%,50%);
    background-color: hsl(200,50%,95%);
    box-shadow: inset 0px 1px 2px hsla(200,50%,30%,.3), 0 2px 0 hsla(0,0%,100%,1);
}

/* Spin button */
.converter input[type="number"]::-webkit-outer-spin-button {
    margin-left: 5px;
}


/* Barometer ----------------------------- */

.converter .barometerTrack {
    width: 24px;
    text-align: center;
    margin-left: 20px;
    padding: 8px 5px;
    border-radius: 12px;
    box-sizing: border-box;
    box-shadow: inset 0px 1px 2px hsla(0,0%,0%,.5), 0 2px 0 hsla(0,0%,100%,1);
    background: -webkit-linear-gradient(bottom,  hsl(200,100%,50%),
                                                 hsl(200,100%,80%) 30%,
                                                 hsl(60,100%,65%) 50%,
                                                 hsl(0,100%,80%) 70%,
                                                 hsl(0,100%,50%) );
    background: -moz-linear-gradient(bottom,     hsl(200,100%,50%),
                                                 hsl(200,100%,80%) 30%,
                                                 hsl(60,100%,65%) 50%,
                                                 hsl(0,100%,80%) 70%,
                                                 hsl(0,100%,50%) );
}

.converter .barometerTrack input[type="range"] {
    -webkit-appearance: slider-vertical;
    /*-moz-appearance: scale-vertical; Looked promising, but doesn't work*/
    border: none;
    width: 16px;
    height: 100px;
    margin: 0;
    background: transparent;
    box-sizing: border-box;
    vertical-align: middle;
}

.converter .barometerTrack input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    border-radius: 15px;
    box-shadow: inset 0 -1px 4px hsla(0,0%,0%,.2), inset 0 0 0 10px hsla(0,0%,100%,1), 0px 1px 2px 2px hsla(0,0%,0%,.2);
}