.OuterContainer {
   /*border: 5px solid red;*/
   margin: 0px;
   padding: 1px;
   max-width: 100%;

}
.ContainerHeader{
   /* border: 1px solid green;*/
   border-radius: 5px;
   padding: 10px;
   max-width: 372px;
   margin: 0px auto;  /* center container horizontally without top and bottom margin. if need top and bottom margin 20px auto */
}