in Portals/default.css there is:
/* === Common Reusable Selectors === */
which have css layout configurations for all administrative properties,
all you have to do is copy that section to your skin.css and change positioning and directions of each class.
here I did some transformation to /* Module actions */ part and /* === Common Reusable Selectors === */ , but not complete:
/* Module actions */
.dnnActionMenuBorder{-moz-box-shadow: 0 0 5px #888;-webkit-box-shadow: 0 0 5px #888;box-shadow: 0 0 5px #888;z-index:-1;
background:transparent;position:absolute;margin:-8px 0 0 -8px;padding: 0 16px 16px 0;width:100%;height:100%;border:1px #ccc solid}
.DnnModule{z-index:902;position:relative;}
.dnnActionMenu{margin:0;padding:0;position:absolute;z-index:906;color:#000;left:10px;top:10px;}
ul.dnnActionMenuBody {display:none;background:#fff;border:5px solid #aaa;padding:10px;border-radius:3px;-moz-border-radius:3px;text-align:right;
position:absolute;left:0;top:10;min-width:480px;-moz-box-shadow:0 0 5px #888;-webkit-box-shadow:0 0 5px#888;box-shadow:0 0 5px #888;}
ul.dnnActionMenuBody li {list-style-type:none;padding:0;margin:0;}
ul.dnnActionMenuBody li.first.last {position:relative;}
.dnnActionMenuTag {background:#aaa;background:-moz-linear-gradient(top, #F3F3F3 0%, #CFCFCF 100%);
background:-webkit-gradient(linear, left top, left bottom, color-stop(0%,#F3F3F3), color-stop(100%,#CFCFCF));
filter:progid:DXImageTransform.Microsoft.gradient( startColorstr='#F3F3F3', endColorstr='#CFCFCF',GradientType=0 );
display:block;padding:5px 10px;border:1px #999 solid;border-radius:3px;-moz-border-radius:3px;line-height:16px;height:16px;font-weight:bold;font-size:11px;min-width:65px;cursor:default;}
.dnnActionMenuTag img{display:block;float:left;padding-right:3px;}
ul.dnnActionMenuBody li{display:block;clear:both;float:none;font-weight:bold;font-size:14px;}
ul.dnnActionMenuBody li span{border:none;display:block;background:none;padding:0;margin:6px 0;width:auto}
ul.dnnActionMenuBody li ul{overflow:hidden;padding:10px 0;margin:0;width:96%;border-top:1px #ccc solid;}
ul.dnnActionMenuBody li ul li{float:right;display:block;min-width:150px;font-weight:normal;clear:none;padding:3px 15px 3px 0px;font-size:11px;border:none;margin:0;}
ul.dnnActionMenuBody li ul li a, ul.dnnActionMenuBody li ul li a img{display:block;line-height:16px;min-height:16px;float:right;color:#328DDE;font-family:Tahoma;}
ul.dnnActionMenuBody li ul li a:hover{color:#1B4D79;}
ul.dnnActionMenuBody li ul li a img{padding-left:5px;}

/* === Common Reusable Selectors === */
.dnnForm{padding:0;border:0;font-size:100%;font:inherit;vertical-align:baseline;min-width:620px;width:96%;margin:0 auto;}
h2.dnnFormSectionHead{margin:0.5em auto 0.6em;padding:0;letter-spacing:-0.03em;font-weight:bold;border-bottom:1px #ccc solid;text-align:right;line-height:1.2;font-size:1.5em;}
.dnnForm h2.dnnFormSectionHead a, .dnnForm h2.dnnFormSectionHead a:visited{display:block;text-decoration:none;padding:0.4em 0.8em;color:#000;
letter-spacing:-0.03em;font-weight:bold;background:url(../../../../images/down-icn.png) no-repeat 1% center;display:block}
.dnnForm h2.dnnFormSectionHead a:hover{background:#f1f1f1 url(../../../../images/down-icn.png) no-repeat 1% center;}
.dnnForm h2.dnnFormSectionHead a.dnnSectionExpanded{background:url(../../../../images/up-icn.png) no-repeat 1% center;text-align:right;}
.dnnForm h2.dnnFormSectionHead a.dnnSectionExpanded:hover{background:#f1f1f1 url(../../../../images/up-icn.png) no-repeat 1% center;}
.dnnFormExpandContent{position:absolute;top:-32px;right:10px;}
.dnnFormExpandContent{text-align:right;}
.dnnForm .dnnFormExpandContent a{font-weight:bold;}
.dnnForm .dnnFormItem span.CommandButton input{display:none !important;font-size:0;line-height:0;border-collapse:collapse;}
.dnnForm .dnnFormItem{padding:4px 6px;clear:both;line-height:1.8;min-height:1.8em;text-align:right;position:relative;}
.dnnForm .dnnFormItem label a span{line-height:1.4;}
.dnnForm .dnnFormItem:after{clear:both;content:".";display:block;height:0;visibility:hidden;font-size:0;}
.dnnForm fieldset{display:block;padding:1em 0;border:none;margin:0;text-align:left;}
.dnnFormItem label, .dnnFormItem .dnnFormLabel, .dnnFormItem .dnnTooltip{display:block;width:30%;text-align:right;margin-right:16px;font-weight:bold;float:right;margin-top:3px;}
.dnnFormItem .dnnTooltip label{width:100%;padding:0;margin:0;}
.dnnForm .dnnFormSecondItem label{float:none;}
.dnnFormItem span.inline label{ display: inline;width: auto;}
.dnnFormItem input, .dnnFormItem .dnnFormInput, .dnnFormItem textarea{float:right;-moz-border-radius:3px;border-radius:3px;padding:5px;
background:#fffff5;-moz-box-shadow:inset 0 0 3px 3px #fffbe1;-webkit-box-shadow:inset 0 0 3px 3px #fffbe1;box-shadow:inset 0 0 3px 3px #fffbe1;
border-color:#bcb691;border-width:1px;margin:0;width:auto;font-family:Helvetica, Arial, Verdana, sans-serif;}
.dnnFormItem input[type=checkbox], .dnnFormItem input[type=radio], .dnnFormItem input[type=file], .dnnFormItem input[type=button],
.dnnFormItem input.rcbInput{width:auto;border:none;-moz-border-radius:0;border-radius:0;background:none;padding:0;-moz-box-shadow:none;-webkit-box-shadow:none;box-shadow:none;}
.dnnFormItem select{width:auto;padding:0;}
.dnnFormItem input[type="text"], .dnnFormItem textarea{min-width:35%;margin-left:5px;}
.dnnFormItem textarea{min-height:80px;}
.dnnAddress input[type="checkbox"]{margin:0 5px}
.dnnForm input.dnnFormRequired, .dnnForm textarea.dnnFormRequired, .dnnForm select.dnnFormRequired{border-left:5px #F00 solid;}
.dnnFormRadioButtons{float:left;width:auto;display:block;}
.dnnFormRadioButtons input[type=radio]{ clear: both;}
.dnnFormRadioButtons label{font-weight:normal;margin:0 10px 0 4px;width:auto;text-align:left;padding-right:0;}

.dnnForm.dnnShortForm .dnnFormItem label{float:none;width:100%;text-align:left;margin-bottom:0.25em}
.dnnForm.dnnShortForm .dnnFormItem input, .dnnForm.dnnShortForm .dnnFormItem select, .dnnForm.dnnShortForm .dnnFormItem textarea{float:none;text-align:left;}
.dnnForm.dnnShortForm .dnnFormItem a.dnnFormHelp{background-position:left;padding-left:22px;}

a.dnnFormHelp, .dnnForm .dnnFormItem a.dnnFormHelp, .dnnTooltip label a.dnnFormHelp{color:#333;text-decoration:none;font-weight:bold;
background:url(../../../../images/help-icn.png) no-repeat right;display:block;position:relative;z-index:2;}
.dnnForm .dnnFormItem a.dnnFormHelp span{padding-right:1.8em;display:block;}
.dnnForm .dnnFormItem a.dnnFormHelp img{display:none;}

.dnnTooltip{position:relative;}

td > .dnnTooltip {min-width:120px;}
td > .dnnTooltip label{text-align:right;}
td > .dnnTooltip label a span{padding-right:20px;display:block}
.dnnTooltip a.pinHelp{background:url(../../../../images/pin-icn-16x16.png) no-repeat left bottom;display:block;text-indent:-9991.2em;height:16px;width:16px;float:right;margin-top:1em;}
.dnnTooltip.dnnTooltipPinned a.pinHelp{background:url(../../../../images/pin-icn-16x16.png) no-repeat left top;}

.dnnFormItem input.aspNetDisabled, .dnnFormItem textarea.aspNetDisabled{background:#ebebeb;-moz-box-shadow:none;-webkit-box-shadow:none;box-shadow:none;border-color:#a7a7a7;border-width:1px;}
.aspNetDisabled, a.aspNetDisabled, .dnnDisabled, a.dnnDisabled{color:#ccc;cursor:not-allowed;text-decoration:none;}

.dnnFormMessage{-moz-border-radius:3px;border-radius:3px;padding:10px 10px 10px 40px;line-height:1.4;margin:0.5em 1em;}
.dnnFormMessage span{float:none;padding:0;width:100%;text-align:left;text-shadow:0px 1px 1px #fff;}
.dnnFormWarning{background:#feffce url(../../../../images/warning-icn.png) no-repeat 10px center;border:2px #cdb21f solid;color:#41370C;text-shadow:0px 1px 1px #fff;}
.dnnFormValidationSummary{background:#f7eaea url(../../../../images/error-icn.png) no-repeat 10px center;text-shadow:0px 1px 1px #fff;color:#900;border:2px #df4a40 solid;}
.dnnFormError{color:#fff !important;background:url(../../../../images/errorbg.gif) no-repeat left center;text-shadow:0px 1px 1px #000;padding:5px 20px;}
.dnnFormItem span.dnnFormMessage.dnnFormError{position:absolute;left:55%;top:0;z-index:9999;}
.dnnFormSuccess{background:#ecffeb url(../../../../images/success-icn.png) no-repeat 10px center;border:2px #64b657 solid;color:#358927}
.dnnFormInfo{background:#edf8ff url(../../../../images/help-icn.png) no-repeat 10px center;border:#46a3d3 2px solid;color:#085b8f;text-shadow:0px 1px 1px #fff;}
.dnnFormHelpContent, .dnnFormItem label .dnnFormHelpContent{border:#46a3d3 2px solid;color:#085b8f;background:#edf8ff url(../../../../images/help-icn.png) no-repeat 10px 10px;
-moz-border-radius:3px;border-radius:3px;text-shadow:0px 1px 1px #fff;font-weight:normal;max-width:30em;padding:0.8em 1em 0.8em 3em;}
.dnnFormHelpContent, .dnnFormItem .dnnFormHelpContent{left:95%;max-width:30em;position:absolute;z-index:25;width:275px;overflow:hidden;top:0;}
.dnnFormHelpContent.ui-draggable{cursor:move;}
.dnnFormHelpContent.dnnClear, .dnnFormItem label.dnnFormLabel .dnnFormHelpContent.dnnClear, .dnnFormItem label .dnnFormHelpContent.dnnClear{line-height:1.4;text-align:left;}

.dnnForm .dnnFormItem.dnnFormHelp, .dnnFormItem.dnnFormHelp{clear:both;overflow:hidden;width:100%;padding:0;}
.dnnFormItem.dnnFormHelp p.dnnFormRequired{float:right;margin:0;padding:0;}
.dnnFormItem.dnnFormHelp p.dnnFormRequired span{border-left:5px #F00 solid;padding-left:0.5em;}

.dnnLeft{float:left;} .dnnRight{float:right;}
.dnnClear:after{clear:both;content:".";display:block;height:0;visibility:hidden;font-size:0;}
*+html .dnnClear{min-height:1%;}

.dnnForm input[type=checkbox], .dnnForm input[type=radio]{margin-top:4px;width:auto;margin-right:5px;}
.dnnTextEditor label{margin:0;padding:0 20px 0 5px;font-weight:normal;text-align:left;width:auto}
.dnnModuleAuditControl{width:95%;margin:0 auto}

ul.dnnActions, ul.dnnActions li{list-style:none;padding:0;margin:0;}
.dnnForm ul.dnnActions, ul.dnnActions{margin:1em 0;border-top:#ccc double;padding:1em 0 0 0;}
ul.dnnActions li{overflow:hidden;display:block;float:right;}
ul.dnnActions li a{display:block;float:right;}
ul.dnnActions li a, a.dnnPrimaryAction, a.dnnPrimaryAction:link, a.dnnPrimaryAction:visited, a.dnnSecondaryAction,
a.dnnSecondaryAction:link, a.dnnSecondaryAction:visited{padding:0 1.2em;line-height:2.5;}
ul.dnnActions input{display:none}
a.dnnPrimaryAction, a.dnnPrimaryAction:link, a.dnnPrimaryAction:visited, a.dnnSecondaryAction, a.dnnSecondaryAction:link, a.dnnSecondaryAction:visited{display:inline-block;}
a.dnnPrimaryAction, a.dnnPrimaryAction:link, a.dnnPrimaryAction:visited, .ui-button.ui-widget.ui-state-default.ui-corner-all.ui-button-text-only{
background:#818181;background:-moz-linear-gradient(top, #818181 0%, #656565 100%);background:-webkit-gradient(linear, left top, left bottom, color-stop(0%,#818181), color-stop(100%,#656565));
filter:progid:DXImageTransform.Microsoft.gradient( startColorstr='#818181', endColorstr='#656565',GradientType=0 );-moz-border-radius:3px;border-radius:3px;
text-shadow:0px 1px 1px #000;color:#fff;text-decoration:none;font-weight:bold;border-color:#fff}
a[disabled].dnnPrimaryAction, a[disabled].dnnPrimaryAction:link, a[disabled].dnnPrimaryAction:visited,a[disabled].dnnPrimaryAction:hover,
a[disabled].dnnPrimaryAction:visited:hover,dnnForm.ui-widget-content a[disabled].dnnPrimaryAction{text-decoration:none;color:#bbb;background:#818181;
background:-moz-linear-gradient(top, #818181 0%, #656565 100%);background:-webkit-gradient(linear, left top, left bottom, color-stop(0%,#818181), color-stop(100%,#656565));
filter:progid:DXImageTransform.Microsoft.gradient( startColorstr='#818181', endColorstr='#656565',GradientType=0 );
-ms-filter:"progid:DXImageTransform.Microsoft.gradient( startColorstr='#818181', endColorstr='#656565',GradientType=0 )";cursor:default;}
ul.dnnActions a.dnnPrimaryAction:hover, ul.dnnActions a.dnnPrimaryAction:visited:hover, a.dnnPrimaryAction:hover,
.ui-button.ui-widget.ui-state-default.ui-corner-all.ui-button-text-only:hover{background:#4E4E4E;background:-moz-linear-gradient(top, #4E4E4E 0%, #282828 100%);
background:-webkit-gradient(linear, left top, left bottom, color-stop(0%,#4E4E4E), color-stop(100%,#282828));filter:progid:DXImageTransform.Microsoft.gradient( startColorstr='#4E4E4E', endColorstr='#282828',GradientType=0 );color:#fff;}
ul.dnnActions a.dnnSecondaryAction, ul.dnnActions a.dnnSecondaryAction:link{font-weight:bold;text-decoration:none;padding:0 1em;}
ul.dnnActions a.dnnSecondaryAction:hover, ul.dnnActions a.dnnSecondaryAction:visited:hover{text-decoration:underline;background:none;color:inherit;}
a[disabled].dnnSecondaryAction, a[disabled].dnnSecondaryAction:link, a[disabled].dnnSecondaryAction:visited,a[disabled].dnnSecondaryAction:hover,
a[disabled].dnnSecondaryAction:visited:hover{text-decoration:none;color:#999;cursor:default;}
.dnnForm.ui-widget-content a.dnnPrimaryAction{color:#fff;}


try it out, and complete them.

Regards