/* ------------------------------------------
 * IT书包
 * 网址：www.itshubao.com
 * 整理：yinq<3331653644@qq.com> 
 -------------------------------------------- */
body, html {
  width: 100%;
  background-color: #9B8F89;
}

.calculator {
  width: 250px;
  height: 335px;
  background-color: #F3EEE7;
  margin: 0 auto;
  border-top-left-radius: 80% 20px;
  border-top-right-radius: 80% 20px;
  border-bottom-left-radius: 80% 20px;
  border-bottom-right-radius: 80% 20px;
  box-shadow: inset 5px 0 10px -5px #635e61, inset -5px 0 10px -5px #635e61, inset 0px -5px 10px -2px #635e61, 0 0 1px 2px #635e61, 0 10px 20px 0 #494547;
  text-align: center;
}
.calculator p#title {
  padding-top: 10px;
  margin-bottom: 10px;
  color: #7d777b;
  font-family: 'Microsoft YaHei';
}
.calculator p#tagline {
  text-transform: uppercase;
  color: #969194;
  margin-bottom: 10px;
  font-family: 'Microsoft YaHei';
  font-size: .7em;
}
.calculator input[type='text'] {
  background-color: #C7C7B0;
  border: 1px solid #b2b292;
  line-height: 40px;
  width: 80%;
  font-size: 2em;
  direction: rtl;
  font-family: 'Microsoft YaHei';
  padding-right: 10px;
  margin-bottom: 20px;
  border-radius: 5px;
  box-shadow: inset 0px -2px 10px #b2b292;
}
.calculator input[type='text']:focus {
  outline: none;
}
.calculator .row {
  display: block;
}
.calculator .row button {
  width: 40px;
  height: 30px;
  border: 1px solid #4B4657;
  border-top: 2px solid #7c748f;
  background-image: -webkit-linear-gradient( top , #4B4657, #332f3b);
  background-image: linear-gradient(to bottom, #4B4657, #332f3b);
  color: white;
  font-size: 1.1em;
  border-radius: 20%;
  border-top-left-radius: 80% 10px;
  border-top-right-radius: 80% 10px;
  border-bottom-left-radius: 100% 10px;
  border-bottom-right-radius: 100% 10px;
  margin-left: 5px;
  margin-right: 5px;
  margin-bottom: 8px;
  box-shadow: inset 0 1px 4px #7c748f, inset 0 -4px 20px #332f3b, 0 3px 1px 0 #332f3b;
}
.calculator .row button:focus {
  outline: 0;
}
.calculator .row button:active {
  background-image: -webkit-linear-gradient( bottom , #4B4657, #332f3b);
  background-image: linear-gradient(to top, #4B4657, #332f3b);
}
.calculator .row .ctrl {
  border: 1px solid #CC4E5F;
  border-top: 2px solid #e39da7;
  background-image: -webkit-linear-gradient( top , #CC4E5F, #b33445);
  background-image: linear-gradient(to bottom, #CC4E5F, #b33445);
  box-shadow: inset 0 1px 4px #e39da7, inset 0 -4px 20px #b33445;
}
.calculator .row .ctrl:active {
  background-image: -webkit-linear-gradient( bottom , #CC4E5F, #b33445);
  background-image: linear-gradient(to top, #CC4E5F, #b33445);
}
.calculator .row .tall {
  height: 65px;
  float: right;
  margin-right: 24px;
  margin-left: -8px;
}