div的颜色在边缘之外

Question

我将页面宽度设置为970px。 一切进展顺利，即使段落在边距内对齐，但当我应用颜色时，它超出了边距。

<div class="container">

            <header>
                <nav class="navbar navbar-default navegacion">
                    <div class="navbar-header">
                        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-ex1-collapse">
                            <span class="sr-only">Cambiar Navegación</span>
                            <span class="icon-bar"></span>
                            <span class="icon-bar"></span>
                            <span class="icon-bar"></span>
                        </button>
                        <a href="#" class="navbar-brand texto"><strong>Amixer Music</strong></a>
                    </div>

                    <div class="collapse navbar-collapse navbar-ex1-collapse">
                    <ul class="nav navbar-nav textomenu">
                        <li><a href="#">Inicio</a></li>
                        <li><a href="#">Traductor Amixer</a></li>
                        <li><a href="#">Yahoo Fail</a></li>
                    </ul>
                </div>
                </nav>
            </header>

            <div class="row">
                <div class="col-xs-12 col-sm-12 col-md-12 col-lg-12">
                    <a href="#"><img class="img-responsive" src="img/amixermusic2.png" alt="AmixerMusic"/></a>
                    </div>
            </div>

            <div class="row">
                <div class="col-xs-12 col-sm-12 col-md-12 col-lg-12 alineado">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
                tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
                quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
                consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
                cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
                proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</div>
            </div>

        </div>

//不是这样的代码注释： - ）

html,
button,
input,
select,
textarea {
    color: #222;
}

body {
    font-size: 16px;
    height: 100%;
}

::-moz-selection {
    background: #b3d4fc;
    text-shadow: none;
}

::selection {
    background: #b3d4fc;
    text-shadow: none;
}

hr {
    display: block;
    height: 1px;
    border: 0;
    border-top: 1px solid #ccc;
    margin: 1em 0;
    padding: 0;
}

img {
    vertical-align: middle;
}

fieldset {
    border: 0;
    margin: 0;
    padding: 0;
}

textarea {
    resize: vertical;
}

.chromeframe {
    margin: 0.2em 0;
    background: #ccc;
    color: #000;
    padding: 0.2em 0;
}


/*My personal css*/

/* Custom container */
.container{
  padding: 0px;
  max-width: 970px;
  margin-top: 2%;
  border: 5px solid #2E2E2E;
        -webkit-border-radius: 10px;
           -moz-border-radius: 10px;
                border-radius: 10px;
        -webkit-box-shadow: 0 1px 2px rgba(0,0,0,.05);
           -moz-box-shadow: 0 1px 2px rgba(0,0,0,.05);
                box-shadow: 0 1px 2px rgba(0,0,0,.05);
}

.imagen
{
    width: 100%;
}

.navegacion
{
    width: 100%;
    margin-bottom: 0%;
}

.texto
{
    font-family: 'Nunito', serif;
    font-size: 25px;
    text-shadow: 4px 4px 4px #aaa;
}

.textomenu
{
    font-family: 'Nunito', serif;
    font-size: 20px;
}

.alineado
{
    background-color: orange;
    margin-right: 0%;
    margin-left: 0%;
}

.color2
{
    background-color: blue;
}

Answer 1

这是因为bootstrap会自动将-15px添加到margin的左右.row：

.row {
    margin-left: -15px;
    margin-right: -15px;
}

尝试重置它，你应该没事：

.row {
    margin: 0
}

<强> Demo