// Make padding not affect the final computed width of an element html { box-sizing: border-box; } *, *:before, *:after { .box-sizing(inherit); } body { background-color: @body-bg-color; color: @text-color; font-family: @font-family; font-size: @font-size; } h1 { font-size: 18px; line-height: 22px; font-weight: normal; } h2 { font-size: 16px; line-height: 19px; font-weight: normal; }