#book-search-input {
    border-left: 5px solid orange;
}

.line-numbers-rows > span {
    pointer-events: none;
    display: block;
    counter-increment: linenumber;
    font-size: 14px;
    line-height: 1.5em;
    margin-top: 1px;
    margin-bottom: 3px;
}

.panel {
    margin-bottom: 20px;
    background-color: #fff;
    border: 1px solid transparent;
    border-radius: 4px;
    -webkit-box-shadow: 0 1px 1px rgba(0,0,0,.05);
    box-shadow: 0 1px 1px rgba(0,0,0,.05);
}

.panel-title {
    margin-top: 0;
    margin-bottom: 0;
    font-size: 16px;
    color: inherit;
    font-weight: 400;
}

.panel-body {
    padding: 15px;
}

.panel-primary {
    border-color: #337ab7;
}

.panel-primary>.panel-heading {
    background-image: -webkit-linear-gradient(top,#337ab7 0,#2e6da4 100%);
    background-image: -o-linear-gradient(top,#337ab7 0,#2e6da4 100%);
    background-image: -webkit-gradient(linear,left top,left bottom,from(#337ab7),to(#2e6da4));
    background-image: linear-gradient(to bottom,#337ab7 0,#2e6da4 100%);
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff337ab7', endColorstr='#ff2e6da4', GradientType=0);
    background-repeat: repeat-x;
}

.panel-primary>.panel-heading {
    color: #fff;
    background-color: #337ab7;
    border-color: #337ab7;
}

.panel-heading {
    padding: 10px 15px;
    border-bottom: 1px solid transparent;
    border-top-left-radius: 3px;
    border-top-right-radius: 3px;
}