.calculator {
  width: 408px;
  height: 837px;
  margin: 10px auto;
  position: relative;
  color: #fff;
  font-size: 3em;
}
.screen-item {
  position: absolute;
  width: 352px;
  height: 90px;
    line-height: 90px;
  background: #ff7f24;
  border: 1px solid #fff;
  top: 0px;
  left: 28px;
  text-align: right;
  
}
.screen-item span {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
}
.screen-item .error {
  color: #f00;
  border: 1px solid;
/* padding: 10px 60px; */
  border-radius: 5px;
  display: block;
  width: 73%;
  font-size: 1em;
  text-align: center;
  font-weight: bold;
  background: #fff;
  font-size: 0.8em;
  padding: 20px 11px;
  line-height: 1.2;
}
.touche__box {
  position: relative;
  top: 91px;
  left: 27px;
}
.touche__box span {
  width: 100%;
  height: 100%;
  display: block;
  text-indent: 29px;
  line-height: 2.1;
}
.touche__box span.soustraction {
  line-height: 1.5;
}
.touche__box .touche__box-item {
  width: 85px;
  height: 96px;
  background-color: #ffd6d6;
  font-weight: bold;
  color: #ff7f24;
  float: left;
  position: relative;
  margin: 2px;
}
.touche__box .clear-item {
  width: 173px;
  height: 95px;
  background: #53e4ed;
  border: 1px solid #fff;
  float: left;
  position: relative;
  margin: 2px;
}
.touche__box .clear-item span {
  text-indent: 35px;
  line-height: 1.99;
}
.touche__box .zero-item {
  width: 174px;
  height: 96px;
}
.touche__box .zero-item span {
  text-indent: 79px;
}
.touche__box .zero-item,
.touche__box .un-item {
  position: relative;
  margin-top: -97px;
}
.touche__box .equal-item {
  width: 85px;
  height: 96px;
  background-color: #ea2131;
  float: left;
  position: relative;
  margin: 2px;
  height: 194px;
}
.touche__box .equal-item span {
  line-height: 4;
}
.touche__box .clearme {
  clear: both;
}