.container {
width: 100%;
margin: 20px auto;
padding: 20px;
border: 1px solid #ccc;
...
.container {
margin: 20px;
}
.calculator...
.container {
width: 100%;
margin: 0px auto;
...
.container {
width: 100%;
margin: 0px auto;
...
.container {
width: 100%;
margin: 0 auto;
...
main {
padding: 20px;
}
.container...
.content {
width: 100%;
margin: 0 auto;
...
.container {
width: 100%;
margin: 20px auto;
...
.container {
padding: 0px;
max-width: 1000px;
...
.container {
width: 100%;
margin: 20px auto;
...