a:link {
    text-decoration: none;
}
a:visited {
    text-decoration: none;
}
a:hover {
    text-decoration: none;
}
a:active {
    text-decoration: none;
}

.jum
{
  /*background-color:#017ef9;*/
  background-color:#343A40;
  /*background-image: linear-gradient(#e66465, #9198e5);*/
  /*background-image: linear-gradient(#483D67, #C54168);*/
  /*background-image: linear-gradient(#2163ED, #154EC0);blue*/
  background-image: linear-gradient(#5A1EFF, #1DEEF1);
}

#beian_footer
{
    /*
    background-color:black;
    height:3rem;
    bottom:0;
    width:100%
    */
}
.fixed-bottom {position: fixed;bottom: 0;width:100%;}