1、放大效果

a:hover img{
    -webkit-transform:scale(1.5,1.5);
    -moz-transform:scale(1.5,1.5);
    -transform:scale(1.5,1.5);
}
<a href="#"><img src="" /></a>

?2、呼吸灯发光

@-webkit-keyframes  shineRed {
from { -webkit-box-shadow: 0 0 5px #bbb; }
50% { -webkit-box-shadow: 0 0 10px red; }
to { -webkit-box-shadow: 0 0 5px #bbb; }
}
a:hover img{
    -webkit-animation-name: shineRed; 
    -webkit-animation-duration: 3s;
    -webkit-animation-iteration-count: infinite;
}

<a href="#"><img src="" /></a>

?3、滚动条

::-webkit-scrollbar {  
  width: 30px;  
  height: 30px;  
}  
  
::-webkit-scrollbar-track,  
::-webkit-scrollbar-thumb {  
  border-radius: 999px;  
  border: 10px solid transparent;  
  
}  
  
::-webkit-scrollbar-track {  
  box-shadow: 1px 1px 5px rgba(0,0,0,.2) inset;  
}  
  
::-webkit-scrollbar-thumb {  
  min-height: 20px;  
  background-clip: content-box;  
  box-shadow: 0 0 0 5px rgba(0,0,0,.2) inset;  
  -webkit-border-radius: 5px;/*圆角弧度*/
}  
  
::-webkit-scrollbar-corner {  
  background: yellow;  
} 

?