修改bootstrap.css这个文件的 .modal-backdrop
将原来的
.modal-backdrop {
position: fixed;
top: 0;
right: 0;
bottom: 0;
left: 0;
z-index: 1040;
background-color: #000;
}
改为
.modal-backdrop {
opacity: 0 !important;
filter: alpha(opacity=0) !important;
}