dark_style.css

* {
    padding: 0;
    margin: 0;
    vertical-align: top;
}

body {
    background: #222736;
    font-family: 'Source Sans Pro', sans-serif;
    font-weight: 300;
    /*font: 18px/1.5em "proxima-nova", Helvetica, Arial, sans-serif;*/
    color: #FFFFFF;
}

a {
    color: #069;
}

a:hover {
    color: #28b;
}

h2 {
    margin-top: 15px;
    font-family: 'Source Sans Pro', sans-serif;
    font-weight: 300;
    /*font: normal 32px "omnes-pro", Helvetica, Arial, sans-serif;*/
    color: #FFFFFF;
}

h3 {
    margin-left: 30px;
    font-family: 'Source Sans Pro', sans-serif;
    font-weight: 300;
    /*font: normal 26px "omnes-pro", Helvetica, Arial, sans-serif;*/
    color: #FFFFFF;
}

p {
    /*margin-top: 10px;*/
    color: #FFFFFF font-family: 'Source Sans Pro', sans-serif;
    font-weight: 300;
}

button {
    font-size: 18px;
    padding: 1px 7px;
}

input {
    font-size: 15px;
    background-color: black;
    color: #FF921E;
    font-weight: 300;
    font-family: 'Source Sans Pro', sans-serif;
    border-color: #555555;
    border-width: 1px;
    border-style: ridge;
}

input[type=checkbox] {
    margin: 7px;
}

#header {
    position: relative;
    width: 900px;
    margin: auto;
}

#header h2 {
    margin-left: 15px;
    vertical-align: middle;
    font-size: 42px;
    font-weight: 300;
    text-decoration: none;
    color: #41C4DC;
}

#content {
    width: 880px;
    margin: 0 auto;
    padding: 10px;
}

#footer {
    margin-top: 25px;
    margin-bottom: 10px;
    text-align: center;
    font-size: 12px;
    color: #999;
}

.demo-container {
    box-sizing: border-box;
    width: 850px;
    height: 450px;
    padding: 20px 15px 15px 15px;
    margin: 15px auto 30px auto;
    border: 1px solid #222222;
    background: #222736;
    /*
    background: linear-gradient(#222222 0, #222 50px);
    background: -o-linear-gradient(#222222 0, #222 50px);
    background: -ms-linear-gradient(#222222 0, #222 50px);
    background: -moz-linear-gradient(#222222 0, #222 50px);
    background: -webkit-linear-gradient(#222222 0, #222 50px);
    */
    /*
    box-shadow: 0 3px 10px rgba(0,0,0,0.15);
    o-box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    ms-box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    moz-box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    webkit-box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    */
}

.demo-placeholder {
    width: 100%;
    height: 100%;
    font-size: 14px;
    line-height: 1.2em;
}

.legend table {
    border-spacing: 5px;
    color: #FFFFFF!important;
}

.flot-tick-label {
    font-size: 14px;
    color: #ffffff;
}

@media only screen and (max-width: 768px) {
    p {
        font-size: 20px;
    }
    h2 {
        font-size: 30px;
    }
    h3 {
        font-size: 30px;
    }
    h3 > span {
        font-size: 30px;
    }
    span {
        font-size: 20px;
    }
    input {
        font-size: 20px;
    }
    .demo-placeholder {
        font-size: 20px;
    }
}

.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
    margin-top: 3px;
}

.switch input {
    display: none;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    -webkit-transition: .4s;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    -webkit-transition: .4s;
    transition: .4s;
}

input:checked + .slider {
    background-color: #2196F3;
}

input:focus + .slider {
    box-shadow: 0 0 1px #2196F3;
}

input:checked + .slider:before {
    -webkit-transform: translateX(26px);
    -ms-transform: translateX(26px);
    transform: translateX(26px);
}

/* Rounded sliders */

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}