styles.css

.assignfeedback_editpdfplus_widget .toolbar ul {
    display: none;
}

.assignfeedback_editpdfplus_widget .toolbar li {
    list-style-type: none;
}
.assignfeedback_editpdfplus_widget .drawingcanvas {
    position: relative;
    min-width: 817px;
    min-height: 400px;
    cursor: move;
    background-repeat: no-repeat;
    background-color: #ccc;
    margin-left: auto;
    margin-right: auto;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .2), 0 1px 20px rgba(0, 0, 0, .2);
}

.assignfeedback_editpdfplus_widget .moodle-dialogue-bd .drawingregion {
    position: inherit;
}

.assignfeedback_editpdfpdf_widget .drawingregion[data-currenttool=drag] .drawingcanvas {
    cursor: move;
}

.assignfeedback_editpdfplus_widget .drawingregion[data-currenttool=select] .drawingcanvas {
    cursor: default;
}

.assignfeedback_editpdfplus_infoicon {
    display: none;
}

.assignfeedback_editpdf_widget .warningmessages {
    position: absolute;
    margin-left: 20px;
    margin-right: 20px;
    bottom: 20px;
}

.assignfeedback_editpdfplus_widget .drawingregion {
    border: 1px solid #ccc;
    overflow: scroll;
    background-color: #ccc;
    touch-action: none;
    max-height: 600px;
}

.assignfeedback_editpdfplus_widget {
    user-select: none;
    -moz-user-select: none;
    -webkit-user-select: none;
}

.assignfeedback_editpdfplus_widget .pageheader {
    background-color: #ebebeb;
    border-bottom: 1px solid #ccc;
    padding: 0;
    padding-left: 20px;
    padding-right: 20px;
    min-height: 50px;
    height: 52px;
    overflow: auto;
}

.moodle-dialogue-base .moodle-dialogue.assignfeedback_editpdfplus_widget .moodle-dialogue-bd {
    padding: 0;
}

.assignfeedback_editpdfplus_widget .assignfeedback_editpdfplus_unsavedchanges_edit.haschanges {
    display: inline-block;
}
.assignfeedback_editpdfplus_widget .assignfeedback_editpdfplus_unsavedchanges_edit {
    display: none;
    position: absolute;
    left: 20px;
    top: 60px;
}

.yui3-colourpicker-hidden {
    display: none;
}

.lineplusbutton,
.lineplusbutton:hover {
    text-decoration: line-through;
}

.assignfeedback_editpdfplus_widget .pageheader button img {
    padding-top: 3px;
    vertical-align: top;
}
.assignfeedback_editpdfplus_widget .pageheader button:active {
    background-color: #ccc;
}
.assignfeedback_editpdfplus_widget .pageheader select,
.assignfeedback_editpdfplus_widget .pageheader button {
    background: none;
    padding: 0 7px;
    border: 0;
    border-radius: 0;
    margin: 0;
    height: 30px;
    vertical-align: top;
    cursor: pointer;
}
.assignfeedback_editpdfplus_widget .pageheader select {
    vertical-align: top;
    -webkit-appearance: none;
    -moz-appearance: menulist-text;
    background-color: #fff;
    padding: 0 2px;
}
.assignfeedback_editpdfplus_widget .pageheader select::-ms-expand {
    display: none;
}

.assignfeedback_editpdfplus_widget .pageheader .navigation button + button,
.assignfeedback_editpdfplus_widget .pageheader .toolbar button + button,
.assignfeedback_editpdfplus_widget .pageheader .navigation select + button,
.assignfeedback_editpdfplus_widget .pageheader .toolbar select + button {
    border-left: 1px solid #ccc;
    border-right: 0;
}

.assignfeedback_editpdfplus_widget .pageheader .navigation button {
    border-right: 1px solid #ccc;
}

.assignfeedback_editpdfplus_widget .pageheader .toolbar,
.assignfeedback_editpdfplus_widget .pageheader .navigation-search,
.assignfeedback_editpdfplus_widget .pageheader .navigation {
    border: 1px solid #ccc;
    border-bottom-color: #b3b3b3;
    border-radius: 4px;
    margin: 10px 4px;
    background-color: white;
    height: 30px;
    line-height: 30px;
    padding: 0;
}

.assignfeedback_editpdfplus_commentsearch ul {
    max-height: 400px;
    overflow-y: auto;
    padding: 1em;
}
.assignfeedback_editpdfplus_commentsearch ul li pre {
    background-color: #efefef;
    white-space: pre-wrap;
    word-break: break-word;
}
.assignfeedback_editpdfplus_commentsearch ul li pre:hover {
    background-color: #ddd;
}
.assignfeedback_editpdfplus_commentsearch ul li {
    margin: 2px;
}
.assignfeedback_editpdfplus_commentsearch a pre {
    font-family: helvetica;
    margin: 0;
    padding: 4px;
}

.assignfeedback_editpdfplus_widget .navigation-search,
.assignfeedback_editpdfplus_widget .navigation {
    float: left;
}
.assignfeedback_editpdfplus_widget .toolbar button {
    box-shadow: none;
    -moz-box-shadow: none;
    -webkit-box-shadow: none;
}
.assignfeedback_editpdfplus_widget .toolbar {
    float: right;
}
.assignfeedback_editpdfplus_widget .navigation,
.assignfeedback_editpdfplus_widget .navigation-search,
.assignfeedback_editpdfplus_widget .toolbar {
    display: inline-block;
}

.assignfeedback_editpdfplus_widget .bar {
    width: 0%;
}

.assignfeedback_editpdfplus_widget div.helpmessage {
    display: none;
}

.assignfeedback_editpdfplus_widget .btn-toolbar {
    min-height: 50px;
}

.assignfeedback_editpdfplus_colourpicker ul {
    margin: 0;
}

.assignfeedback_editpdfplus_dropdown button {
    border: 0;
    background: none;
    padding: 6px 7px;
    border-radius: 0;
    border-top: 1px solid #ccc;
}
.assignfeedback_editpdfplus_dropdown li:first-child button {
    border-top: 0;
}
.moodle-dialogue-base .moodle-dialogue.assignfeedback_editpdfplus_dropdown .moodle-dialogue-wrap {
    box-shadow: none;
    -moz-box-shadow: none;
    -webkit-box-shadow: none;
    margin-left: 0;
    margin-right: 0;
    margin-top: 0;
    border-radius: 4px;
}
.moodle-dialogue-base .moodle-dialogue.assignfeedback_editpdfplus_dropdown .moodle-dialogue-bd {
    padding: 0;
}
.moodle-dialogue-base .assignfeedback_editpdfplus_dropdown .moodle-dialogue-wrap .moodle-dialogue-hd,
.moodle-dialogue-base .assignfeedback_editpdfplus_dropdown .moodle-dialogue-wrap .moodle-dialogue-ft {
    display: none;
}
.assignfeedback_editpdfplus_menu li hr {
    margin: 0;
}
.assignfeedback_editpdfplus_menu li a {
    text-decoration: none;
    color: #555;
    margin: 10px;
}
.assignfeedback_editpdfplus_menu li:hover {
    background-color: #ebebeb;
}
ul.assignfeedback_editpdfplus_menu {
    margin: 0;
    max-height: 40vh;
    overflow-y: auto;
    overflow-x: hidden;
    padding-left: 0;
}
.assignfeedback_editpdfplus_menu li {
    list-style-type: none;
    margin: 0;
    border-radius: 4px;
}
.assignfeedback_editpdfplus_menu li img {
    height: auto;
}
.assignfeedback_editpdfplus_menu li button {
    margin: 0;
    background: none;
}

.assignfeedback_editpdfplus_widget .pageheader button:hover {
    background-color: #ebebeb;
    background-image: radial-gradient(ellipse at center, #fff 60%, #dfdfdf 100%);
}

.assignfeedback_editpdfplus_widget .commentdrawable img {
    padding: 1px;
}

.assignfeedback_editpdfplus_widget .commentdrawable a {
    float: right;
    position: relative;
    left: -17px;
    top: 2px;
    height: 14px;
    background-color: white;
    border-left: 1px solid #ccc;
    border-bottom: 1px solid #ccc;
    line-height: 14px;
}

.assignfeedback_editpdfplus_widget .commentdrawable textarea {
    padding: 4px;
    padding-right: 20px;
    resize: none;
    overflow: hidden;
    color: black;
    border: 2px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
    font-family: helvetica;
    min-height: 1.2em;
}

.assignfeedback_editpdfplus_widget .commentdrawable {
    display: inline-block;
}

.assignfeedback_editpdfplus_widget .drawingcanvas .loading .progressbarlabel {
    text-align: center;
}

.hideoverflow {
    overflow: hidden;
    position: relative;
}

@media (max-width: 960px) {
    .assignfeedback_editpdfplus_widget .pageheader {
        height: 104px;
    }

    .assignfeedback_editpdfplus_widget .drawingregion {
        top: 104px;
    }
}

@media (max-width: 767px) {
    .assignfeedback_editpdfplus_widget .drawingregion {
        position: relative;
        margin-bottom: 1em;
        top: 0;
        max-height: 312px;
    }

    .assignfeedback_editpdfplus_widget .pageheader {
        height: auto;
    }
}

@media (max-width: 480px) {
    .assignfeedback_editpdfplus_widget .pageheader {
        padding-left: 5px;
        padding-right: 5px;
    }
}

/*** add editpdfplus ***/
.highlightplusbutton,
.highlightplusbutton:hover {
    text-decoration: underline;
}
.framebutton,
.framebutton:hover {
    text-decoration: underline;
}

.assignfeedback_editpdfplus_hightlightplus,
.assignfeedback_editpdfplus_frame,
.assignfeedback_editpdfplus_verticalline,
.assignfeedback_editpdfplus_stampcomment,
.assignfeedback_editpdfplus_commentplus {
    position: absolute;
    border-width: 2px;
    border-style: solid;
    border-radius: 10px;
    background-color: #fffeeb;
    padding: 0;
    line-height: normal;
    display: inline-block;
}
.assignfeedback_editpdfplus_highlightplus_cartridge,
.assignfeedback_editpdfplus_frame_cartridge,
.assignfeedback_editpdfplus_verticalline_cartridge,
.assignfeedback_editpdfplus_stampcomment_cartridge,
.assignfeedback_editpdfplus_commentplus_cartridge {
    display: inline;
    border-right-width: 2px;
    border-right-style: solid;
    padding-left: 2px;
    padding-right: 2px;
    padding-top: 0;
    padding-bottom: 0;
    margin: 0;
    font-size: 10px;
}
.assignfeedback_editpdfplus_highlightplus_conteneur,
.assignfeedback_editpdfplus_frame_conteneur,
.assignfeedback_editpdfplus_verticalline_conteneur,
.assignfeedback_editpdfplus_stampcomment_conteneur,
.assignfeedback_editpdfplus_commentplus_conteneur {
    display: inline;
    margin: 0;
    margin-right: 4px;
    padding-top: 0;
    padding-bottom: 0;
}
.assignfeedback_editpdfplus_highlightplus_conteneur > button,
.assignfeedback_editpdfplus_frame_conteneur > button,
.assignfeedback_editpdfplus_verticalline_conteneur > button,
.assignfeedback_editpdfplus_stampcomment_conteneur > button,
.assignfeedback_editpdfplus_commentplus_conteneur > button {
    margin-left: 2px;
    padding: 0;
    height: 20px;
}
.assignfeedback_editpdfplus_widget .aepp-toolbar,
.assignfeedback_editpdfplus_widget_admin .aepp-toolbar {
    height: 20px;
}
.assignfeedback_editpdfplus_widget .aepp-toolbar .btn-sm,
.assignfeedback_editpdfplus_widget_admin .aepp-toolbar .btn-sm {
    padding: 0 2px;
}
.assignfeedback_editpdfplus_widget .aepp-toolbar-vertical,
.assignfeedback_editpdfplus_widget_admin .aepp-toolbar-vertical {
    width: 100%;
}
.assignfeedback_editpdfplus_widget .aepp-toolbar-vertical .btn,
.assignfeedback_editpdfplus_widget_admin .aepp-toolbar-vertical .btn {
    font-size: small;
}

.assignfeedback_editpdfplus_widget_admin_div_axis {
    min-width: 350px;
}

.assignfeedback_editpdfplus_highlightplus_input,
.assignfeedback_editpdfplus_frame_input,
.assignfeedback_editpdfplus_verticalline_input,
.assignfeedback_editpdfplus_stampcomment_input,
.assignfeedback_editpdfplus_commentplus_input {
    display: inline;
    padding-left: 2px;
    padding-right: 2px;
    font-size: 10px;
}
.assignfeedback_editpdfplus_commentplus_input > table {
    width: 200px;
    z-index: 51;
}
.assignfeedback_editpdfplus_highlightplus_edition,
.assignfeedback_editpdfplus_frame_edition,
.assignfeedback_editpdfplus_verticalline_edition,
.assignfeedback_editpdfplus_stampcomment_edition,
.assignfeedback_editpdfplus_commentplus_edition {
    padding-left: 2px;
    padding-right: 2px;
    font-size: 12px;
}
.assignfeedback_editpdfplus_highlightplus_edition > div,
.assignfeedback_editpdfplus_frame_edition > div,
.assignfeedback_editpdfplus_verticalline_edition > div,
.assignfeedback_editpdfplus_stampcomment_edition > div,
.assignfeedback_editpdfplus_commentplus_edition > div {
    width: 220px;
}
.assignfeedback_editpdfplus_highlightplus_edition > div > p,
.assignfeedback_editpdfplus_frame_edition > div > p,
.assignfeedback_editpdfplus_verticalline_edition > div > p,
.assignfeedback_editpdfplus_stampcomment_edition > div > p,
.assignfeedback_editpdfplus_commentplus_edition > div > p {
    margin: 0;
    width: 195px;
}
.assignfeedback_editpdfplus_highlightplus_visu,
.assignfeedback_editpdfplus_frame_visu,
.assignfeedback_editpdfplus_verticalline_visu,
.assignfeedback_editpdfplus_stampcomment_visu,
.assignfeedback_editpdfplus_commentplus_visu {
    padding-left: 2px;
    padding-right: 2px;
    font-size: 12px;
    color: inherit;
    cursor: default;
}

.radio-inline {
    cursor: pointer;
    display: inline-block;
    font-weight: 400;
    margin-bottom: 0;
    position: relative;
    vertical-align: middle;
    font-size: 12px;
}

.assignfeedback_editpdfplus_widget_admin .card {
    margin-bottom: 4px;
    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);
}
.assignfeedback_editpdfplus_widget_admin .card {
    border-color: #ddd;
}
.assignfeedback_editpdfplus_widget_admin .card > .card-header {
    color: #333;
    background-color: #f5f5f5;
    border-color: #ddd;
}
.assignfeedback_editpdfplus_widget_admin .card-header {
    border-bottom: 1px solid transparent;
    border-top-left-radius: 3px;
    border-top-right-radius: 3px;
}
.assignfeedback_editpdfplus_widget_admin .card-body {
    padding: 15px;
}
.assignfeedback_editpdfplus_widget_admin .card-header button,
.assignfeedback_editpdfplus_widget_admin .card-header > a {
    color: black;
}
.assignfeedback_editpdfplus_widget_admin table {
    width: 100%;
}
.assignfeedback_editpdfplus_widget_admin_col1 {
    width: 17%;
    vertical-align: top;
}
.assignfeedback_editpdfplus_widget_admin_col2 {
    padding-left: 20px;
    vertical-align: top;
}
#message_edit_tool {
    margin-top: 10px;
    margin-bottom: 0;
    display: none;
    width: 50%;
}
#editpdlplus_tool_item {
    margin-top: 15px;
}
#editpdlplus_tool_label {
    cursor: default;
}
.assignfeedback_editpdfplus_widget_admin_tool_col2 {
    padding-left: 15px;
    width: 50%;
    vertical-align: top;
}
.assignfeedback_editpdfplus_widget_admin_tool_col1 {
    width: 50%;
    vertical-align: top;
}
.assignfeedback_editpdfplus_widget_admin_tool_row {
    padding-top: 20px;
}
#toolworkspace label {
    width: 100%;
}
#toolworkspace .drawingcanvas {
    background-repeat: no-repeat;
    border-width: 1px;
    border-style: solid;
    height: 330px;
    box-sizing: border-box;
}
.assignfeedback_editpdfplus_resize{
    position: absolute;
}
.assignfeedback_editpdfplus_resize_active {
    background-color:#e3e3ff;
    border: solid #ccccff;
}
.assignfeedback_editpdfplus_resize_horizontal.assignfeedback_editpdfplus_resize_active:hover {
    cursor:col-resize;
}
.assignfeedback_editpdfplus_resize_vertical.assignfeedback_editpdfplus_resize_active:hover {
    cursor:row-resize;
}

/* Tooltip text */
.costumtoolbarbutton .assignfeedback_editpdfplus_tooltiptext {
    visibility: hidden;
    min-width: 120px;
    background-color: #555;
    color: #fff;
    text-align: center;
    padding: 5px;
    border-radius: 6px;

    /* Position the tooltip text - see examples below! */
    position: absolute;
    z-index: 1;
    top: 100%;
    left: 50%;
    margin-left: -60px; /* Use half of the width (120/2 = 60), to center the tooltip */
    margin-top: 5px;

    /* Fade in tooltip - takes 1 second to go from 0% to 100% opac: */
    opacity: 0;
    transition: opacity 1s;
}
/* Show the tooltip text when you mouse over the tooltip container */
.costumtoolbarbutton:hover .assignfeedback_editpdfplus_tooltiptext {
    visibility: visible;
    opacity: 1;
}