Multiple choice:Read the following CSS code, and the following options are equivalent to the effect of this code segment is ()（ (select one)

Read the following CSS code, and the following options are equivalent to the effect of this code segment is ()（ Select one) @ [a] (2)

.box {  margin:10px 5px;  margin- right:10px;  margin- top:5px;  }  
A. 
.box {  margin:5px 10px  10px 5px; }
B. 
.box {  margin:5px 10px  0px 0px; }
C. 
.box {  margin:5px 10px;  }
D. 
.box {  margin:10px 5px  10px 5px; }




A.
.box {  margin:5px 10px  10px 5px; }
B.
.box {  margin:5px 10px  0px 0px; }
C.
.box {  margin:5px 10px;  }
D.
.box {  margin:10px 5px  10px 5px; }


answer：A