مشكلة بهاك العلم المزاج لكي تقوم بحذف تلك الخلفية يتوجّب حذف استدعاء الكلاس b المتواجد في

class="b"

.old-t9a{    
background: url(images/9a.png) no-repeat;    
background-position: 4px 6px;
transition: ease-in-out 0.50s;
-webkit-transition: ease-in-out 0.50s;
-o-transition: ease-in-out 0.50s;
}
.old-t9a:hover{    
background: url(images/9a1.png) no-repeat;    
background-position: 4px 6px;
transition: ease-in-out 0.50s;
-webkit-transition: ease-in-out 0.50s;
-o-transition: ease-in-out 0.50s;
}
.new-ra{    
background-position: -3px -67px;
}
.old-ra{    
background-position: -1px -107px;
}
.new-za {
background-position: -29px -68px;
}
.old-za {    
background-position: -29px -105px;
}
.new-sa {
background-position: -104px -107px;
}
.old-sa {    
background-position: -104px -68px;
}
.new-ta {    
background-position: -133px -107px;
}
.old-ta {    
background-position: -133px -107px;
}
.new-t9 {    
background-position: -52px -68px
}
.old-t9 {    
background-position: -52px -107px;
}
.log-out{    
background-position: -78px -68px;    
-webkit-transition: all ease 0.5s;    
-o-transition: all ease 0.5s;    
-ms-transition: all ease 0.5s;    
transition: all ease 0.5s;
}
.log-out:hover{    
background-position: -78px -107px;
}