在 window 调整大小时使用媒体查询更改 div 宽度

change div width using media queries when window resize

我想编写一个媒体查询,以便在调整浏览器大小时为 div 设置不同的宽度。我想要这样做是因为我的 bootstrap 不会按预期工作。有什么帮助吗?

html :

<div class = "column2 col-sm-10 col-xs-10">
    <ng-view> Loading.. </ng-view>
</div>

CSS:

.column2
{
    width: 450px;
    float: left;
    background-color: white;
    height: 535px;
    border-radius: 5px;
    margin-top: 30px;
    overflow-y: auto;  /* Makes the scrollbar appear when it should be scrollable */
}

我希望在浏览器宽度小于 600 像素时发生这种情况。

@media screen and (max-width: 600px) {
.column2
{
    width: 450px;
    float: left;
    background-color: white;
    height: 535px;
    border-radius: 5px;
    margin-top: 30px;
    overflow-y: auto;  /* Makes the scrollbar appear when it should be scrollable */
}

}
@media screen and (max-width:600px) {

    .column2
    {
    width: 450px;
    float: left;
    background-color: white;
    height: 535px;
    border-radius: 5px;
    margin-top: 30px;
    overflow-y: auto;  /* Makes the scrollbar appear when it should be      scrollable */
    }
}