Translation of this issue:
Environment
MacOS 10.13.6/chrome 68/vue 2.5
Reproduction link
https://run.iviewui.com/H4SP9fiX
Steps to reproduce
Click autocomplete directly.
What is expected?
The drop-down box can slide normally under the autocomplete component.
What is actually happening?
The data is too long to drop the box directly covering the autocomplete component, and may not slide.

some of the styles I set:
.ivu-select-dropdown-list{
height: 250px !important; //it deals w/ the list width& height
}
.ivu-select-dropdown{ //it deals w/ the list width& height
width:220px !important;
overflow-x: hidden !important;
}
.ivu-select-item{
font-size:16px !important;
text-align:left !important;
}
.ivu-input, .ivu-input-default{
font-size: 16px !important;
}