Bootstrap:如何在一定大小的文本权限？

Question

当我将浏览器的大小减小到XS大小时,使用Twitter Bootstrap.这是我的页脚.我有text-right处理剩余屏幕尺寸的属性,但在XS上,它在堆叠后仍然与右边对齐.

如何text-right在XS屏幕尺寸上没有这个？

<footer>
    <div class="container">
        <div class="row">
            <div class="col-md-6 col-sm-6 col-xs-12 copyright">
                <p>&copy; 2014 LFDate. All rights reserved.</p>
            </div>
            <div class="col-md-6 col-sm-6 col-xs-12">
                <ul class="list-inline text-right">
                    <li><p><a href="#">Blog</a></p></li>
                    <li><p><a href="#">Press</a></p></li>
                    <li><p><a href="#">Jobs</a></p></li>
                    <li><p><a href="#">Contact</a></p></li>
                </ul>
            </div>
        </div>
    </div>
</footer>

Answer 1

Bootstrap 4 为此添加了新的css类:

<p class="text-sm-right">Right aligned text on viewports sized SM (small) or wider.</p>
<p class="text-md-right">Right aligned text on viewports sized MD (medium) or wider.</p>
<p class="text-lg-right">Right aligned text on viewports sized LG (large) or wider.</p>
<p class="text-xl-right">Right aligned text on viewports sized XL (extra-large) or wider.</p>

Answer 2

在GitHub上找到这个宝石:https://github.com/twbs/bootstrap/issues/11292

它为左右文本添加了响应式类

.text-left-not-xs, .text-left-not-sm, .text-left-not-md, .text-left-not-lg {
    text-align: left;
}
.text-center-not-xs, .text-center-not-sm, .text-center-not-md, .text-center-not-lg {
    text-align: center;
}
.text-right-not-xs, .text-right-not-sm, .text-right-not-md, .text-right-not-lg {
    text-align: right;
}
.text-justify-not-xs, .text-justify-not-sm, .text-justify-not-md, .text-justify-not-lg {
    text-align: justify;
}

@media (max-width: 767px) {
    .text-left-not-xs, .text-center-not-xs, .text-right-not-xs, .text-justify-not-xs {
        text-align: inherit;
    }
    .text-left-xs {
        text-align: left;
    }
    .text-center-xs {
        text-align: center;
    }
    .text-right-xs {
        text-align: right;
    }
    .text-justify-xs {
        text-align: justify;
    }
}
@media (min-width: 768px) and (max-width: 991px) {
    .text-left-not-sm, .text-center-not-sm, .text-right-not-sm, .text-justify-not-sm {
        text-align: inherit;
    }
    .text-left-sm {
        text-align: left;
    }
    .text-center-sm {
        text-align: center;
    }
    .text-right-sm {
        text-align: right;
    }
    .text-justify-sm {
        text-align: justify;
    }
}
@media (min-width: 992px) and (max-width: 1199px) {
    .text-left-not-md, .text-center-not-md, .text-right-not-md, .text-justify-not-md {
        text-align: inherit;
    }
    .text-left-md {
        text-align: left;
    }
    .text-center-md {
        text-align: center;
    }
    .text-right-md {
        text-align: right;
    }
    .text-justify-md {
        text-align: justify;
    }
}
@media (min-width: 1200px) {
    .text-left-not-lg, .text-center-not-lg, .text-right-not-lg, .text-justify-not-lg {
        text-align: inherit;
    }
    .text-left-lg {
        text-align: left;
    }
    .text-center-lg {
        text-align: center;
    }
    .text-right-lg {
        text-align: right;
    }
    .text-justify-lg {
        text-align: justify;
    }
}

Answer 3

你可以简单地用CSS重写它:

@media (max-width: 767px) {
    footer .text-right { text-align:center }
}

xs大小适用于767px和更低分辨率.