abysss adlı üyeden alıntı: mesajı görüntüle
Eklentiyi tekrar indirip css i editledim düzeldi sorun halloldu hocam tekrar sağolun

çözüm için style.css dosyasını alttaki ile değiştirin.
/* Set the size and font of the tab widget */
.tabGroup {
    background: none repeat scroll 0 0 #F3F1EB;
    border: 1px solid #DEDBD1;
    padding: 10px;
    width: 530px;
    height: auto;
}

.tabGroup div.questionCon{
    width: 100%;
    float: left;
    padding-top: 5px;
}

.tabGroup select, .tabGroup label, .tabGroup div {
    font-size: 12px;
}

div.questionCon.qsubmit{
    text-align: center;
}

.tabGroup div.question{
	padding-right: 10px;
    float: left;
    text-align: right;
    width: 100px;
}

.tabGroup div.inputCon{
    float:left;
}
  
/* Configure the radio buttons to hide off screen */
.tabGroup > input[type="radio"] {
    position: absolute;
    left:-100px;
    top:-100px;
}
  
/* Configure labels to look like tabs */
.tabGroup > input[type="radio"] + label {
    /* inline-block such that the label can be given dimensions */
    display: inline-block;
  
    /* A nice curved border around the tab */
    border: 1px solid #DEDBD1;
    border-radius: 5px 5px 0 0;
    -moz-border-radius: 5px 5px 0 0;
    -webkit-border-radius: 5px 5px 0 0;
      
    /* the bottom border is handled by the tab content div */
    border-bottom: 0;
  
    /* Padding around tab text */
    padding: 5px 10px;
  
    /* Set the background color to default gray (non-selected tab) */
    background-color:#ddd;
}
  
/* Focused tabs need to be highlighted as such */
.tabGroup > input[type="radio"]:focus + label {
    border:1px dashed #DEDBD1;
}
  
/* Checked tabs must be white with the bottom border removed */
.tabGroup > input[type="radio"]:checked + label {
    background-color:white;
    font-weight: bold;
    border-bottom: 1px solid white;
    margin-bottom: -1px;
}
  
/* The tab content must fill the widgets size and have a nice border */
.tabGroup > div {
    display: none;
    border: 1px solid #DEDBD1;
    background-color: white;
    padding: 10px 0px;
    height: auto;
    overflow: auto;
    margin-top: -1px;
      
    border-radius: 0 5px 5px 5px;
    -moz-border-radius: 0 5px 5px 5px;
    -webkit-border-radius: 0 5px 5px 5px;
}
  
/* This matchs tabs displaying to thier associated radio inputs */
#wpfc-options:checked ~ .tab1, #wpfc-deleteCache:checked ~ .tab2, #wpfc-cacheTimeout:checked ~ .tab3 {
    display: block;
}
/* for lef panel */
#toplevel_page_WpFastestCacheOptions img{
    padding: 0 !important;
    margin-left: 5px !important;
}
#toplevel_page_WpFastestCacheOptions div.wp-menu-name{
    margin-left: 46px !important;
}
.question:after {
    content: ":";
}
.tab1 input{
    margin-right: 5px;
}
değiştirip gönderdim.

div.questionCon.qsubmit{
text-align: center;
}

burada curly parantezi kapatmamışım tşk ettim