.bs-docs-masthead,.bs-docs-header {
    position: relative;
    padding: 30px 15px;
    color: #fff;
    text-align: center;
    text-shadow: 0 1px 0 rgba(0,0,0,.1);
    background-color: #428bca;
    background-image: -webkit-linear-gradient(top,#428bca 0,#357ebd 100%);
    background-image: linear-gradient(to bottom,#428bca 0,#357ebd 100%);
    background-repeat: repeat-x;
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#428bca', endColorstr='#357ebd', GradientType=0)
}

.bs-docs-masthead .bs-docs-booticon {
    margin: 0 auto 30px
}

.bs-docs-masthead h1 {
    font-weight: 300;
    line-height: 1;
    color: #fff
}

.bs-docs-masthead .lead {
    margin: 0 auto 30px;
    font-size: 20px;
    color: #fff
}

.bs-docs-masthead .version {
    margin-top: -15px;
    margin-bottom: 30px;
    color: #9783b9
}

.bs-docs-masthead .btn {
    width: 100%;
    padding: 15px 30px;
    font-size: 20px
}

@media (min-width: 480px) {
    .bs-docs-masthead .btn {
        width:auto
    }
}

@media (min-width: 768px) {
    .bs-docs-masthead {
        padding-top:20px;
        padding-bottom: 20px
    }

    .bs-docs-masthead h1 {
        font-size: 60px
    }

    .bs-docs-masthead .lead {
        font-size: 24px
    }
}

@media (min-width: 992px) {
    .bs-docs-masthead .lead {
        width:80%;
        font-size: 30px
    }
}

.bs-docs-header {
    margin-bottom: 40px;
    font-size: 20px
}

.bs-docs-header h1 {
    margin-top: 0;
    color: #fff
}

.bs-docs-header p {
    margin-bottom: 0;
    font-weight: 300;
    line-height: 1.4
}

.bs-docs-header .container {
    position: relative
}

@media (min-width: 768px) {
    .bs-docs-header {
        padding-top:20px;
        padding-bottom: 20px;
        font-size: 24px;
        text-align: left
    }

    .bs-docs-header h1 {
        font-size: 60px;
        line-height: 1
    }
}

@media (min-width: 992px) {
    .bs-docs-header h1,.bs-docs-header p {
        margin-right:380px
    }
}
input[type="range"] {
    -webkit-appearance: none !important;
    margin-top: 10px;
    background-color: #434341;
    height: 1px;
    vertical-align: 1px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none!important;
    height: 20px;
    width: 10px;
    background-color: #428bca;
    cursor: pointer
}

input[type="number"]{
    width: 100%;
}





canvas, img {
    border-radius: 4px;
    border: 1px solid #ddd;
    -webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, .075);
    box-shadow: 0 1px 2px rgba(0, 0, 0, .075);
}

#preview {
    margin: auto;
    display: block;

    cursor: move;  
}

.container img {
    width: 100%;
}

button.btn {
    float: right;
    min-width: 100px;
}