css - line-through not working as should -


class .slogan has "text-decoration: line-through;", "span" has "text-decoration: none;" why not canceling it? 

header {    background: #34abf8;    width: 100%;    height: 500px;  }  .slogan {    text-align: center;    text-transform: uppercase;    font-weight: 700;    color: white;    font-size: 4.5em;    text-decoration: line-through;  }  .slogan span {    font-weight: 500;    font-size: 0.45em;    text-decoration: none;  }
<header>      <div class="slogan">    text underlined. <span>but shouldn't underlined</span>    </div>    </header>

the spec states clearly:

the 'text-decoration' property on descendant elements cannot have effect on decoration of ancestor.

however, text decorations propagated contents of descendants unless displayed atomic inline-level elements, floated, positioned absolutely.

16.3.1 underlining, overlining, striking, , blinking: 'text-decoration' property

[...] note text decorations not propagated floating , absolutely positioned descendants, nor contents of atomic inline-level descendants such inline blocks , inline tables.

therefore, change display of span inline-block in order prevent <span> element being affected decoration of parent:

header {    background: #34abf8;    width: 100%;    height: 500px;  }  .slogan {    text-align: center;    text-transform: uppercase;    font-weight: 700;    color: white;    font-size: 4.5em;    text-decoration: line-through;  }  .slogan span {    font-weight: 500;    font-size: 0.45em;    display: inline-block;  }
<header>      <div class="slogan">    text underlined. <span>but shouldn't underlined</span>    </div>    </header>


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