CSS3样式linear-gradient的使用实例

<div class="div1">
    这是内容
</div>

.div1 {
        width: 100px;
        height: 40px;
        line-height: 40px;
        background:linear-gradient(-135deg, transparent 15px, #162e48 0);
        color: #fff;
        padding: 5px 15px;
        text-align: center;
        margin-bottom: 30px;
    }

.div2 {
        width: 100px;
        height: 40px;
        line-height: 40px;
        background:linear-gradient(-135deg, #f00 15px, #162e48 0);
        color: #fff;
        padding: 5px 15px;
        text-align: center;
        margin-bottom: 30px;
    }

<div class="div3">
    这是内容
</div>

.div3 {
        width: 100px;
        height: 40px;
        line-height: 40px;
        background:linear-gradient(-135deg, #f00 15px, #162e48 0);
        color: #fff;
        padding: 5px 15px;
        text-align: center;
        margin-bottom: 30px;
        box-shadow: 0 0 1px 1px #fff inset;
    }

<div class="div4">
    <div class="div4-1">OFF</div>
    <div class="div4-2 active">ON</div>
</div>

.div4 {
        width: 144px;
        height: 30px;
        line-height: 30px;
        background: #162e48;
        color: #FFF;
        text-align: center;
        margin-bottom: 30px;
    }
    .div4-1, .div4-2 {
        width: 86px;
        float: left;
    }
    .div4-1.active {
        margin-right: -28px;
        background:linear-gradient(-135deg, transparent 20px, #f00 0);
    }
    .div4-2.active {
        margin-left: -28px;
        background:linear-gradient(45deg, transparent 20px, #f00 0);
    }

.div5 {
        width: 100px;
        height: 40px;
        line-height: 40px;
        background:linear-gradient(-135deg, #fff 15px, #162e48 0);
        color: #fff;
        padding: 5px 15px;
        text-align: center;
        box-shadow: 0 0 1px 1px #fff;
        margin-bottom: 30px;
        position: relative;
    }
    .div5:after {
        content: ' ';
        border: solid transparent;
        position: absolute;
        border-width: 12px;
        border-top-color: #000;
        border-right-color: #000;
        top: -2px;
        right: -2px;
    }

.div6 {
        width: 100px;
        height: 40px;
        line-height: 40px;
        background:#162e48;
        color: #fff;
        padding: 5px 15px;
        text-align: center;
        position: relative;
        border: 1px solid #fff;
        margin-bottom: 30px;
    }
    .div6:before {
        content: ' ';
        border: solid transparent;
        position: absolute;
        border-width: 15px;
        border-top-color: #fff;
        border-right-color: #fff;
        right: 0px;
        top: 0px;
    }
    .div6:after {
        content: ' ';
        border: solid transparent;
        position: absolute;
        border-width: 15px;
        border-top-color: #000;
        border-right-color: #000;
        top: -1px;
        right: -1px;
    }