如何使子菜单显示在左侧,而不是右侧

时间:2016-08-06 23:57:57

标签: html css twitter-bootstrap-4

我有一个带有子菜单的bootstrap 4菜单。子菜单按预期显示在菜单菜单的右侧。

但是,菜单位于屏幕的最右侧。因此菜单在右侧被切断。

有没有办法让菜单显示在主菜单的左侧,而不是右侧?

HTML:

<div class="dropdown dropdown-user-menu">
                <button type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                    <span class="glyphicon glyphicon-option-vertical"></span>
                </button>
                <div class="dropdown dropdown-menu dropdown-typical dropdown-menu-right">
                    <a repeat.for="item of statusTypes" click.delegate="editProgramStatus(item)" class="dropdown-item">${item.name}</a>
                    <div class="dropdown-divider"></div>
                    <div class="dropdown-more">
                        <div class="dropdown-more-caption">Choose color...</div>
                        <div class="dropdown-more-sub">
                            <div class="dropdown-more-sub-in">
                                <a class="dropdown-item" href="#"><span class="font-icon font-icon-home"></span>Quant and Verbal</a>
                                <a class="dropdown-item" href="#"><span class="font-icon font-icon-cart"></span>Real Gmat Test</a>
                                <a class="dropdown-item" href="#"><span class="font-icon font-icon-speed"></span>Prep Official App</a>
                                <a class="dropdown-item" href="#"><span class="font-icon font-icon-users"></span>CATprer Test</a>
                                <a class="dropdown-item" href="#"><span class="font-icon font-icon-comments"></span>Third Party Test</a>
                            </div>
                        </div>
                    </div>

                </div>


            </div>

的CSS:

     .dropdown-menu {
  border-color: #d8e2e7;
  margin-top: 6px;
  font-size: 0.8125rem /*13/16*/;
}
.dropup .dropdown-menu {
  margin-bottom: 6px;
}
.dropdown-menu-col {
  float: left;
  width: 50%;
}
.dropdown-header,
.dropdown-item {
  padding: 4px 12px;
}
.dropdown-header {
  text-transform: uppercase;
  font-weight: 600;
  color: #6c7a86;
  font-size: 0.875rem /*14/16*/;
}
.dropdown-item {
  font-size: 0.9375rem /*15/16*/;
}
.dropdown-item .font-icon {
  margin: 0 8px 0 0;
  color: #adb7be;
  transition: all 0.2s ease-in-out;
  font-size: 16px;
  vertical-align: middle;
  line-height: 16px;
  position: relative;
  top: -1px;
}
.dropdown-item:hover,
.dropdown-item.current {
  background: none;
  color: #00a8ff;
}
.dropdown-item:hover .font-icon,
.dropdown-item.current .font-icon {
  color: #00a8ff;
}
.dropdown-item.no-nowrap {
  white-space: normal;
  line-height: 1.3;
}
.dropdown.dropdown-typical {
  position: relative;
}
.dropdown.dropdown-typical a.dropdown-toggle {
  color: #343434;
  font-weight: 600;
  padding-right: 15px;
  padding-left: 15px;
}
.dropdown.dropdown-typical a.dropdown-toggle:after,
.dropdown.dropdown-typical a.dropdown-toggle .font-icon {
  transition: all 0.2s ease-in-out;
}
.dropdown.dropdown-typical a.dropdown-toggle:after {
  color: #adb7be;
  border-top: 5px solid;
  border-right: 4px solid transparent;
  border-left: 4px solid transparent;
  position: relative;
  top: -1px;
}
.dropdown.dropdown-typical a.dropdown-toggle .font-icon {
  vertical-align: middle;
  margin: 0 6px 0 0;
  color: #adb7be;
  font-size: 16px;
  line-height: 16px;
  position: relative;
  top: -1px;
}
.dropdown.dropdown-typical a.dropdown-toggle.dropdown-toggle-txt {
  font-weight: 400;
  color: #00a8ff;
  font-size: 0.9375rem /*15/16*/;
}
.dropdown.dropdown-typical a.dropdown-toggle.dropdown-toggle-txt:after {
  display: none;
}
.dropdown.dropdown-typical.open a.dropdown-toggle,
.dropdown.dropdown-typical a.dropdown-toggle:hover {
  color: #00a8ff;
}
.dropdown.dropdown-typical.open a.dropdown-toggle:after,
.dropdown.dropdown-typical a.dropdown-toggle:hover:after,
.dropdown.dropdown-typical.open a.dropdown-toggle .font-icon,
.dropdown.dropdown-typical a.dropdown-toggle:hover .font-icon {
  color: #00a8ff;
}
.dropdown.dropdown-typical .dropdown-header,
.dropdown.dropdown-typical .dropdown-item {
  padding: 3px 14px;
}
.dropdown.dropdown-typical .dropdown-item {
  font-size: 0.9375rem /*15/16*/;
}
.dropdown.dropdown-typical .dropdown-menu {
  margin-top: 2px;
  min-width: 100%;
}
.dropdown.dropdown-typical .dropdown-more {
  position: relative;
}
.dropdown.dropdown-typical .dropdown-more .dropdown-more-caption {
  padding: 3px 12px;
  transition: all 0.2s ease-in-out;
  cursor: pointer;
  position: relative;
  font-size: 15px;
}
.dropdown.dropdown-typical .dropdown-more .dropdown-more-caption:before {
  content: '';
  display: block;
  position: absolute;
  right: 10px;
  top: 50%;
  margin-top: -3px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 4px 0 4px 5px;
  border-color: transparent transparent transparent #adb7be;
  transition: all 0.2s ease-in-out;
}
.dropdown.dropdown-typical .dropdown-more .dropdown-more-caption.padding {
  padding-left: 37px;
}
.dropdown.dropdown-typical .dropdown-more .dropdown-more-sub {
  display: none;
  position: absolute;
  top: -4px;
  left: 100%;
  padding: 0 0 0 4px;
  margin: 0 0 0 -3px;
}
.dropdown.dropdown-typical .dropdown-more .dropdown-more-sub-in {
  background: #fff;
  border: solid 1px #d8e2e7;
  border-left: none;
  border-radius: 0 3px 3px 0;
  padding-top: 4px;
  padding-bottom: 4px;
}
.dropdown.dropdown-typical .dropdown-more:hover .dropdown-more-caption {
  color: #00a8ff;
}
.dropdown.dropdown-typical .dropdown-more:hover .dropdown-more-caption:before {
  border-left-color: #00a8ff;
}
.dropdown.dropdown-typical .dropdown-more:hover .dropdown-more-sub {
  display: block;
}
.dropdown.dropdown-status {
  display: inline-block;
}
.dropdown.dropdown-status .btn.dropdown-toggle {
  height: 22px;
  font-size: 0.8125rem /*13/16*/;
  padding: 0 7px;
}
.dropdown.dropdown-status .btn.dropdown-toggle.btn-danger {
  background-color: #fa424a !important;
  border-color: #fa424a !important;
}
.dropdown.dropdown-status .btn.dropdown-toggle.btn-primary {
  background-color: #00a8ff !important;
  border-color: #00a8ff !important;
}
.dropdown.dropdown-status .btn.dropdown-toggle.btn-success {
  background-color: #46c35f !important;
  border-color: #46c35f !important;
}
.dropdown.dropdown-status .btn.dropdown-toggle.btn-warning {
  background-color: #f29824 !important;
  border-color: #f29824 !important;
}
.dropdown.dropdown-status .dropdown-menu {
  margin-left: -5px;
}
.dropdown.dropdown-status .dropdown-menu a.dropdown-item {
  font-weight: 400;
  border: none;
}
.dropdown-toggle .caret {
  display: none;
}
编辑:我发现这很有效。

<div style="left: -95%;" class="dropdown-more-sub">
                        <div class="dropdown-more-sub-in">
                            <a class="dropdown-item" href="#"><span class="font-icon font-icon-home"></span>Quant and Verbal</a>
                            <a class="dropdown-item" href="#"><span class="font-icon font-icon-cart"></span>Real Gmat Test</a>
                            <a class="dropdown-item" href="#"><span class="font-icon font-icon-speed"></span>Prep Official App</a>
                            <a class="dropdown-item" href="#"><span class="font-icon font-icon-users"></span>CATprer Test</a>
                            <a class="dropdown-item" href="#"><span class="font-icon font-icon-comments"></span>Third Party Test</a>
                        </div>
                    </div>

2 个答案:

答案 0 :(得分:1)

dropdown-menu-right 

您可能必须删除此类

答案 1 :(得分:0)

我想出了一个有趣的答案:向左设置为负95%。

这似乎很有效。

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