Dear Frédéric Bernard,
Please check your configuration in the module again. Please don't Show Navigation Buttons option, config Image width and height. Please go to your_site/modules/mod_sj_k2_extraslider/assets/css/style.css and find:
.sj-extraslider .item .line {
border-top: 1px dotted;
float: left;
margin-bottom: 5px;
margin-top: 5px;
overflow: hidden;
padding: 0;
width: 100%;
}
=>
.sj-extraslider .item .line {
float: left;
margin-bottom: 5px;
margin-top: 5px;
overflow: hidden;
padding: 0;
width: 100%;
}
and:
.sj-extraslider .extraslider-inner {
border-bottom: 1px dotted;
clear: both;
}
=>
.sj-extraslider .extraslider-inner {
clear: both;
}
About (5), our demo don't have, please check it again:
demo.smartaddons.com/#sj-k2-extra-slider
Thanks