label--input

.form-group {
margin-bottom: 15px;
position: relative;
}
.control-label{
float: left;
15%;
text-align: right;
padding-right: 20px;
padding-top: 7px;
}
.form-control{
float: left;
50%;
}
.form-control input{
display: block;
100%;
height: 34px;
padding: 0 12px;
font-size: 14px;
line-height: 1.428571429;
color: #555555;
vertical-align: middle;
outline: none;
background-color: #ffffff;
background-image: none;
border: 1px solid #cccccc;
border-radius: 4px;

}
.s-r{
height: 34px;
line-height: 34px;
position: absolute;
top: 25px;
right: 0;
z-index: 2;
display: block;

}
.clearfix:before,.clearfix:after{
content: "";
display: table;
}
.clearfix:after{
clear: both;
}
.clearfix{
zoom:1;
}

<div class="form-group clearfix">
<label for="inputPassword3" class="control-label">Password</label>
<div class="form-control">
<input type="text" id="inputPassword3" placeholder="Password">
</div>
</div>
<div class="form-group clearfix">
<label for="inputPassword2" class="control-label">Password</label>
<div class="form-control">
<input type="text" id="inputPassword2" placeholder="Password">
</div>
</div>
<div class="form-group clearfix">
<label for="inputPassword1" class="control-label">Password</label>
<div class="form-control">
<input type="text" id="inputPassword1" placeholder="Password">
</div>
<span class="s-r">元</span>
</div>
<label>
<input type="checkbox" />
记住用户名
</label>