可能是这样的:
.showTimestamp { padding-top:20px;font-size:11px; float:right; color:#999999;font-style:normal;font-weight:normal; }
和标签的重新排列:
<div class="myself" title="Susan Adams97 [1:42:29 PM]" dir="ltr"><nobr>Susan Adams97</nobr></div><div style="clear:both;"></div></div><div class="message left" title="Susan Adams97 [1:42:29 PM]" dir="ltr" ><span class="chatbox"><span style="font-size:10pt;font-family:Arial;" class="left">What's up</span></span><span class="showTimestamp tsDisplay"><nobr>1:42:29 PM</nobr></span> </div><div style="clear:both"></div></div>
.chatbox {
display: inline-block;
float:right;
padding: 10px;
margin-left: 2px;
margin-right: 3px;
margin-top:3px;
background: #0084ff;
color: #fff;
position: relative;
border-radius: 30px;
clear: both;
border-top-right-radius: 5px;
}
.chatbox_other{
display: inline-block;
padding: 10px;
margin-left: 2px;
margin-right: 0px;
margin-top:3px;
background: #D3D3D3;
color: #000 !important;
position: relative;
border-radius: 30px;
border-top-left-radius: 5px;
}
/* speech bubble 13 */
.sb13:before {
content: "";
width: 0px;
height: 0px;
position: absolute;
border-left: 15px solid #0084ff;
border-right: 15px solid transparent;
border-top: 15px solid #0084ff;
border-bottom: 15px solid transparent;
right: -16px;
top: 0px;
}
/* speech bubble 14 */
.sb14:before {
content: "";
width: 0px;
height: 0px;
position: absolute;
border-left: 15px solid transparent;
border-right: 15px solid #0084ff;
border-top: 15px solid #0084ff;
border-bottom: 15px solid transparent;
left: -16px;
top: 0px;
}
body { margin: 0 0 0 0; padding:0 0 0 0; overflow:hidden; background-color:#fafafa; }
.transcript { background-color:#d2d2d2;}
.message { padding-left:0px; padding-right:0px;margin-left:0px; word-wrap:break-word; white-space:-moz-pre-wrap; _white-space:pre; white-space:pre-wrap; }
.messageCont { padding-left:0px; margin-left:95px; word-wrap:break-word; white-space:-moz-pre-wrap; _white-space:pre;white-space:pre-wrap;}
.other { font-size:11px;color:#1970b0;vertical-align:top;font-weight:bold;font-style:normal;float:left; width:95px; white-space:nowrap; padding-top:2px; }
.myself { font-size:11px;color:#222222;font-style:normal;font-weight:bold;font-style:normal;float:right;white-space:nowrap; padding-top:2px; }
.otherCont { font-size:8px;text-align:right; color:#1970b0;font-family:Arial,Lucida Grande;font-style:normal;vertical-align:top;font-weight:bold;float:left; width:95px; }
.myselfCont { font-size:8px;text-align:right; color:#222222;font-family:Arial,Lucida Grande;font-style:normal;vertical-align:top;font-weight:bold;float:left; width:95px; }
.system { font-size:11px; word-wrap:break-word;color:#d13f08;font-style:normal;font-weight:normal; white-space:-moz-pre-wrap; _white-space:pre;white-space:pre-wrap; }
.showTimestampother { padding-top:9px;padding-left:20px;font-size:11px; float:right; color:#999999;font-style:normal;font-weight:normal; }
.other1 { font-size:11px; color:#ba006e;vertical-align:top;font-weight:bold;font-style:normal;float:left; width:95px; padding-top:2px; }
.otherCont1 { font-size:8px;text-align:right; color:#ba006e;font-family:Arial,Lucida Grande;font-style:normal;vertical-align:top;font-weight:bold;float:left; width:95px; }
.other2 { font-size:11px; color:#007670;vertical-align:top;font-weight:bold;font-style:normal;float:left; width:95px; padding-top:2px; }
.otherCont2 { font-size:8px;text-align:right; color:#007670;font-family:Arial,Lucida Grande;font-style:normal;vertical-align:top;font-weight:bold;float:left; width:95px; }
.other3 { font-size:11px; color:#3b0256;vertical-align:top;font-weight:bold;font-style:normal;float:left; width:95px; padding-top:2px; }
.otherCont3 { font-size:8px;text-align:right; color:#3b0256;font-family:Arial,Lucida Grande;font-style:normal;vertical-align:top;font-weight:bold;float:left; width:95px; }
.other4 { font-size:11px; color:#00512b;vertical-align:top;font-weight:bold;font-style:normal;float:left; width:95px; padding-top:2px; }
.otherCont4 { font-size:8px;text-align:right; color:#00512b;font-family:Arial,Lucida Grande;font-style:normal;vertical-align:top;font-weight:bold;float:left; width:95px; }
.other5 { font-size:11px; color:#a91024;vertical-align:top;font-weight:bold;font-style:normal;float:left; width:95px; padding-top:2px;}
.otherCont5 { font-size:8px;text-align:right; color:#a91024;font-family:Arial,Lucida Grande;font-style:normal;vertical-align:top;font-weight:bold;float:left; width:95px; }
.other6 { font-size:11px; color:#b8471b;vertical-align:top;font-weight:bold;font-style:normal;float:left; width:95px; padding-top:2px;}
.otherCont6 { font-size:8px;text-align:right; color:#b8471b;font-family:Arial,Lucida Grande;font-style:normal;vertical-align:top;font-weight:bold;float:left; width:95px; }
.other7 { font-size:11px; color:#7f1c7d;vertical-align:top;font-weight:bold;font-style:normal;float:left; width:95px; padding-top:2px;}
.otherCont7 { font-size:8px;text-align:right; color:#7f1c7d;font-family:Arial,Lucida Grande;font-style:normal;vertical-align:top;font-weight:bold;float:left; width:95px; }
.highlight { background-color:#bed6f8; }
.datestamp { padding-right:0px; font-size:11px; cursor:default;padding-top:1px;padding-bottom:1px; background-color:#a7a7a7; width:100%; float:left; text-align:right; color:#333333; font-weight:bold; font-style:italic; }
.displayNone {display:none;}
.showTimestamp { padding-top:20px;font-size:11px; float:right; color:#999999;font-style:normal;font-weight:normal; }
<div class="myself" title="Susan Adams97 [1:42:29 PM]" dir="ltr"><nobr>Susan Adams97</nobr></div><div style="clear:both;"></div></div><div class="message left" title="Susan Adams97 [1:42:29 PM]" dir="ltr" ><span class="chatbox"><span style="font-size:10pt;font-family:Arial;" class="left">What's up</span></span><span class="showTimestamp tsDisplay"><nobr>1:42:29 PM</nobr></span> </div><div style="clear:both"></div></div>
<div class="myself" title="Susan Adams97 [1:42:29 PM]" dir="ltr"><nobr>Susan Adams97</nobr></div><div style="clear:both;"></div></div><div class="message left" title="Susan Adams97 [1:42:29 PM]" dir="ltr" ><span class="chatbox"><span style="font-size:10pt;font-family:Arial;" class="left">Nevermind me just testing</span></span><span class="showTimestamp tsDisplay"><nobr>1:42:29 PM</nobr></span> </div><div style="clear:both"></div></div>
<div class="myself" title="Susan Adams97 [1:42:29 PM]" dir="ltr"><nobr>Susan Adams97</nobr></div><div style="clear:both;"></div></div><div class="message left" title="Susan Adams97 [1:42:29 PM]" dir="ltr" ><span class="chatbox"><span style="font-size:10pt;font-family:Arial;" class="left">Lorem Ipsum is simply dummy text of the printing and typm fsdfs
sdfs
</span></span><span class="showTimestamp tsDisplay"><nobr>1:42:29 PM</nobr></span> </div><div style="clear:both"></div></div>