a,
abbr,
acronym,
address,
applet,
article,
aside,
audio,
b,
big,
blockquote,
body,
canvas,
caption,
center,
cite,
code,
dd,
del,
details,
dfn,
div,
dl,
dt,
em,
embed,
fieldset,
figcaption,
figure,
footer,
form,
h1,
h2,
h3,
h4,
h5,
h6,
header,
hgroup,
html,
i,
iframe,
img,
ins,
kbd,
label,
legend,
li,
mark,
menu,
nav,
object,
ol,
output,
p,
pre,
q,
ruby,
s,
samp,
section,
small,
span,
strike,
strong,
sub,
summary,
sup,
table,
tbody,
td,
tfoot,
th,
thead,
time,
tr,
tt,
u,
ul,
var,
video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline
}

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
    display: block
}

body {
    line-height: 1
}

ol,
ul {
    list-style: none
}

blockquote,
q {
    quotes: none
}

blockquote:after,
blockquote:before,
q:after,
q:before {
    content: "";
    content: none
}

table {
    border-collapse: collapse;
    border-spacing: 0
}

@font-face {
    font-family: Roboto;
    font-style: normal;
    font-weight: 100;
    src: local("Roboto Thin"), local("Roboto-Thin"), url(../../fonts/roboto-v16-latin-100.woff2) format("woff2"), url(../../fonts/roboto-v16-latin-100.woff) format("woff")
}

@font-face {
    font-family: Roboto;
    font-style: italic;
    font-weight: 100;
    src: local("Roboto Thin Italic"), local("Roboto-ThinItalic"), url(../../fonts/roboto-v16-latin-100italic.woff2) format("woff2"), url(../../fonts/roboto-v16-latin-100italic.woff) format("woff")
}

@font-face {
    font-family: Roboto;
    font-style: normal;
    font-weight: 300;
    src: local("Roboto Light"), local("Roboto-Light"), url(../../fonts/roboto-v16-latin-300.woff2) format("woff2"), url(../../fonts/roboto-v16-latin-300.woff) format("woff")
}

@font-face {
    font-family: Roboto;
    font-style: italic;
    font-weight: 300;
    src: local("Roboto Light Italic"), local("Roboto-LightItalic"), url(../../fonts/roboto-v16-latin-300italic.woff2) format("woff2"), url(../../fonts/roboto-v16-latin-300italic.woff) format("woff")
}

@font-face {
    font-family: Roboto;
    font-style: normal;
    font-weight: 400;
    src: local("Roboto"), local("Roboto-Regular"), url(../../fonts/roboto-v16-latin-regular.woff2) format("woff2"), url(../../fonts/roboto-v16-latin-regular.woff) format("woff")
}

@font-face {
    font-family: Roboto;
    font-style: italic;
    font-weight: 400;
    src: local("Roboto Italic"), local("Roboto-Italic"), url(../../fonts/roboto-v16-latin-italic.woff2) format("woff2"), url(../../fonts/roboto-v16-latin-italic.woff) format("woff")
}

@font-face {
    font-family: Roboto;
    font-style: normal;
    font-weight: 500;
    src: local("Roboto Medium"), local("Roboto-Medium"), url(../../fonts/roboto-v16-latin-500.woff2) format("woff2"), url(../../fonts/roboto-v16-latin-500.woff) format("woff")
}

@font-face {
    font-family: Roboto;
    font-style: italic;
    font-weight: 500;
    src: local("Roboto Medium Italic"), local("Roboto-MediumItalic"), url(../../fonts/roboto-v16-latin-500italic.woff2) format("woff2"), url(../../fonts/roboto-v16-latin-500italic.woff) format("woff")
}

@font-face {
    font-family: Roboto;
    font-style: normal;
    font-weight: 700;
    src: local("Roboto Bold"), local("Roboto-Bold"), url(../../fonts/roboto-v16-latin-700.woff2) format("woff2"), url(../../fonts/roboto-v16-latin-700.woff) format("woff")
}

@font-face {
    font-family: Roboto;
    font-style: italic;
    font-weight: 700;
    src: local("Roboto Bold Italic"), local("Roboto-BoldItalic"), url(../../fonts/roboto-v16-latin-700italic.woff2) format("woff2"), url(../../fonts/roboto-v16-latin-700italic.woff) format("woff")
}

@font-face {
    font-family: Roboto;
    font-style: normal;
    font-weight: 900;
    src: local("Roboto Black"), local("Roboto-Black"), url(../../fonts/roboto-v16-latin-900.woff2) format("woff2"), url(../../fonts/roboto-v16-latin-900.woff) format("woff")
}

@font-face {
    font-family: Roboto;
    font-style: italic;
    font-weight: 900;
    src: local("Roboto Black Italic"), local("Roboto-BlackItalic"), url(../../fonts/roboto-v16-latin-900italic.woff2) format("woff2"), url(../../fonts/roboto-v16-latin-900italic.woff) format("woff")
}

img {
    border: 0
}

.h2,
h2,
img {
    padding: 0;
    margin: 0
}

.h2,
h2 {
    font-family: Roboto;
    font-size: 28px;
    color: #5d8dac
}

.body-text,
.p,
p {
    font-family: Roboto;
    font-size: 14px;
    color: #000;
    line-height: 20px;
    padding-bottom: 10px
}

.bold,
.strong,
b,
strong {
    font-weight: 700
}

.em,
.italic,
em,
i {
    font-style: italic
}

.remove-padding {
    padding: 0
}

.remove-margin {
    margin: 0
}

ol {
    font-family: Roboto;
    font-size: 14px;
    color: #000;
    list-style-type: decimal;
    margin-left: 20px
}

.block-center {
    margin: 0 auto;
    text-align: center
}

ul.dot-list {
    font-family: Roboto;
    font-size: 12px;
    color: #000;
    list-style-type: disc;
    margin-left: 20px
}

ul.dot-list>li {
    margin-left: 15px
}

ul.dot-list>li.no-dot {
    margin-left: -4px;
    list-style-type: none
}

ul.dash-list {
    list-style: none;
    padding-left: 0;
    font-family: Roboto;
    font-size: 14px;
    color: #000
}

ul.dash-list>li {
    margin-left: 15px;
    line-height: 20px
}

ul.dash-list>li:before {
    content: "\2014";
    content: "-";
    margin-left: -15px;
    padding-right: 12px
}

a {
    outline: 0!important
}

.simulationcanvas {
    position: relative;
    width: 830px;
    height: 500px;
    border: 1px solid #ccc;
    -webkit-transform: translateZ(0);
    overflow: hidden;
    margin-top: 0;
    padding: 0
}

#questions,
#questions .container {
    width: 830px!important;
    margin: 10px auto 0
}

#prev-lesson {
    background: url(../../images/optical-measurements/video-player-buttons.png) no-repeat 0 0;
    display: inline-block
}

#next-lesson {
    background: url(../../images/optical-measurements/video-player-buttons.png) no-repeat 100% 0;
    display: inline-block
}

.control-button {
    display: inline-block;
    width: 34px;
    height: 39px;
    margin: 0;
    overflow: hidden;
    padding: 0;
    cursor: pointer;
    line-height: 36px
}

.control-button.menu-button,
.return-button {
    background: #f1f1f1;
    border: 1px solid #c3c3c3;
    border-radius: 5px;
    height: 40px;
    width: 80px;
    text-align: center;
    color: #3f7189;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    display: inline-block;
    vertical-align: top;
}

.control-button.menu-button:hover {
    text-decoration: none
}

.control-button.disabled {
    opacity: .3
}

#questions {
    min-height: 600px
}

#myModal {
    display: none
}

#progress {
    font-family: Roboto;
    background: #f7aa29;
    color: #fff;
    font-size: 1.42857142857143em;
    margin: 1em auto;
    width: 830px
}

#simulationcanvas {
    border: none
}

#practicequestion {
    border: 1px solid #ccc;
    padding: 1em 2em
}

.highlightcorrect {
    background-color: #f9f1ad;
    border: 1px solid #f7af5c;
    width: 600px
}

.modal-backdrop {
    background: none;
    display: none
}

#distractors {
    position: relative
}

.modal-title {
    font-family: Roboto
}

.modal-body {
    height: auto
}

.modal-content {
    box-shadow: none;
    -webkit-box-shadow: none;
    -moz-box-shadow: none;
    -moz-transition: none;
    -webkit-transition: none;
    border: 0;
    width: 400px;
    positon: absolute;
    float: right
}

.modal-dialog {
    position: absolute;
    right: 0;
    float: right;
    bottom: -50px
}

.modal {
    position: absolute;
    height: auto
}

.correct .modal-body {
    border-bottom: 2px solid #82a03d;
    border-left: 2px solid #82a03d;
    border-right: 2px solid #82a03d;
    border-bottom-left-radius: 10px;
    border-bottom-right-radius: 10px;
    position: relative;
    top: -1px;
    height: auto
}

.correct .modal-header {
    background: #d4e1c4;
    background: url(data:image/svg+xml;base64,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);
    background: linear-gradient(180deg, #d4e1c4 0, #bed2a1);
    filter: progid: DXImageTransform.Microsoft.gradient(startColorstr="#d4e1c4", endColorstr="#bed2a1", GradientType=0);
    height: 30px;
    padding: 2px 8px 0 0;
    text-align: center;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px
}

.correct .closebutton {
    background: #fff;
    background: url(data:image/svg+xml;base64,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);
    background: radial-gradient(ellipse at center, #fff 28%, #82a03d 100%);
    filter: progid: DXImageTransform.Microsoft.gradient(startColorstr="#ffffff", endColorstr="#82a03d", GradientType=1);
    border: 1px solid #82a03d;
    border-radius: 10px;
    padding: 0;
    margin: 0;
    display: inline-block;
    float: right;
    width: 20px;
    hight: 18px;
    text-align: center;
    font-size: 20px;
    line-height: 18px;
    top: 3px;
    position: relative;
    cursor: pointer
}

.correct .closebuttontext {
    color: #82a03d;
    position: relative;
    top: -2px
}

.closebuttontext:hover {
    color: #fff
}

.incorrect .modal-body {
    border-bottom: 2px solid #f7aa29;
    border-left: 2px solid #f7aa29;
    border-right: 2px solid #f7aa29;
    border-bottom-left-radius: 10px;
    border-bottom-right-radius: 10px;
    position: relative;
    top: -1px;
    height: auto
}

.incorrect .modal-header {
    background: #fbd494;
    background: url(data:image/svg+xml;base64,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);
    background: linear-gradient(180deg, #fbd494 0, #f7ab2c);
    filter: progid: DXImageTransform.Microsoft.gradient(startColorstr="#fbd494", endColorstr="#f7ab2c", GradientType=0);
    height: 30px;
    padding: 2px 8px 0 0;
    text-align: center;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px
}

.incorrect .closebutton {
    background: #fff;
    background: url(data:image/svg+xml;base64,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);
    background: radial-gradient(ellipse at center, #fff 0, #ffc877 100%);
    filter: progid: DXImageTransform.Microsoft.gradient(startColorstr="#ffffff", endColorstr="#ffc877", GradientType=1);
    border: 1px solid #ff8900;
    border-radius: 10px;
    padding: 0;
    margin: 0;
    display: inline-block;
    float: right;
    width: 20px;
    hight: 18px;
    text-align: center;
    font-size: 20px;
    line-height: 18px;
    top: 3px;
    position: relative;
    cursor: pointer
}

.incorrect .closebuttontext {
    color: #ff8900;
    position: relative;
    top: -2px
}

.padded {
    padding-left: 60px
}

.greyedout {
    border: 1px solid #818383;
    padding-left: 10px;
    color: #484848
}

.flatbutton,
.greyedout {
    background-color: #f0f1f1
}

.flatbutton {
    border: 1px solid #b6b8b9;
    color: #035f96;
    font-weight: 700
}

.checkanswer {
    color: #0c5a90
}

.answerlabel {
    font-weight: 700;
    text-size: 11px
}

.exampleanswer {
    border: 1px solid #d0d0d0;
    border-radius: 3px;
    display: inline-block;
    width: 135px;
    text-align: center
}

body.modal-open {
    overflow: scroll
}

#btnClose {
    top: 85px;
    right: 0
}

#btnClose,
#btnScroll {
    position: fixed;
    cursor: pointer;
    display: none
}

#btnScroll {
    bottom: 45px;
    right: 40px;
    z-index: 1;
    transition: all .5s ease-in-out
}

#btnScroll.up {
    -webkit-transform: rotate(180deg);
    transform: rotate(180deg)
}

.blink {
    animation: a 1s steps(20, start) infinite;
    -webkit-animation: a 1s steps(20, start) infinite
}

@keyframes a {
    to {
        opacity: .5
    }
}

@-webkit-keyframes a {
    to {
        opacity: 1
    }
}

label {
    line-height: 20px;
    padding-bottom: 10px;
    margin-left: 12px
}

input[type=number],
label {
    font-family: Roboto;
    font-size: 14px;
    color: #000
}

input[type=number] {
    width: 50px
}

.control-button {
    text-decoration: none !important;
}